diff --git a/benchmarks/Cargo.lock b/benchmarks/Cargo.lock
index 5d6de8fd..bc5cb455 100644
--- a/benchmarks/Cargo.lock
+++ b/benchmarks/Cargo.lock
@@ -2,10 +2,10 @@
 # It is not intended for manual editing.
 [[package]]
 name = "aho-corasick"
-version = "0.7.6"
+version = "0.7.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -15,84 +15,68 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "askama"
-version = "0.8.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "askama_derive 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "askama_escape 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "askama_shared 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "askama_derive 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "askama_escape 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "askama_shared 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "askama_derive"
-version = "0.8.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "askama_shared 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "nom 4.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "askama_shared 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nom 5.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "askama_escape"
-version = "0.2.0"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "askama_shared"
-version = "0.8.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "askama_escape 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "askama_escape 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "humansize 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "toml 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.113 (registry+https://github.com/rust-lang/crates.io-index)",
+ "toml 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "autocfg"
-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "backtrace"
-version = "0.3.40"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "backtrace-sys 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "backtrace-sys"
-version = "0.1.32"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "cc 1.0.47 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "benchmarks"
 version = "0.1.2"
 dependencies = [
- "askama 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "handlebars 2.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "horrorshow 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "liquid 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "askama 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "handlebars 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "horrorshow 0.8.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "liquid 0.20.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "maud 0.21.0",
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "tera 0.11.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.113 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tera 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "bitflags"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "block-buffer"
 version = "0.7.3"
@@ -100,7 +84,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "block-padding 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "byte-tools 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "generic-array 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -113,18 +97,21 @@ dependencies = [
 ]
 
 [[package]]
-name = "byte-tools"
-version = "0.3.1"
+name = "bstr"
+version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
-name = "byteorder"
-version = "1.3.2"
+name = "byte-tools"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "cc"
-version = "1.0.47"
+name = "byteorder"
+version = "1.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -134,23 +121,36 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "chrono"
-version = "0.4.9"
+version = "0.4.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-integer 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "deunicode"
-version = "0.4.3"
+name = "chrono-tz"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "chrono 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parse-zoneinfo 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
 name = "deunicode"
-version = "1.0.0"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -163,7 +163,7 @@ dependencies = [
 
 [[package]]
 name = "doc-comment"
-version = "0.3.1"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -172,17 +172,13 @@ version = "1.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "error-chain"
-version = "0.12.1"
+name = "fake-simd"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "backtrace 0.3.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
-name = "fake-simd"
-version = "0.1.2"
+name = "fnv"
+version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -190,40 +186,57 @@ name = "generic-array"
 version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "typenum 1.11.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "typenum 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "glob"
-version = "0.2.11"
+name = "getrandom"
+version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
-name = "handlebars"
-version = "2.0.2"
+name = "globset"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "hashbrown 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aho-corasick 0.7.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bstr 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fnv 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "pest 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "pest_derive 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "quick-error 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "walkdir 2.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "globwalk"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ignore 0.4.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "hashbrown"
-version = "0.5.0"
+name = "handlebars"
+version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest_derive 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quick-error 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.113 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.55 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "horrorshow"
-version = "0.7.0"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -232,18 +245,25 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "idna"
-version = "0.1.5"
+name = "ignore"
+version = "0.4.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-normalization 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "globset 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "same-file 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-util 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "itertools"
-version = "0.8.2"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -251,9 +271,17 @@ dependencies = [
 
 [[package]]
 name = "itoa"
-version = "0.4.4"
+version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "kstring"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "serde 1.0.113 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -261,83 +289,61 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.65"
+version = "0.2.71"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "liquid"
-version = "0.19.0"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "chrono 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "deunicode 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "doc-comment 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "itertools 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "liquid-compiler 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "liquid-derive 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "liquid-error 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "liquid-interpreter 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "liquid-value 0.19.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-segmentation 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "doc-comment 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "kstring 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "liquid-core 0.20.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "liquid-derive 0.20.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "liquid-lib 0.20.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.113 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "liquid-compiler"
-version = "0.19.0"
+name = "liquid-core"
+version = "0.20.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "itertools 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
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- "liquid-value 0.19.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "pest 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "anymap 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itertools 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "kstring 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "liquid-derive 0.20.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "pest_derive 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.113 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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-version = "0.19.0"
+version = "0.20.1"
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 dependencies = [
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- "proc-quote 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-quote 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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-version = "0.19.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
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-version = "0.19.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "anymap 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "itertools 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "liquid-error 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "liquid-value 0.19.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "liquid-value"
-version = "0.19.1"
+name = "liquid-lib"
+version = "0.20.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "chrono 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "itertools 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "liquid-error 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itertools 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "kstring 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "liquid-core 0.20.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "once_cell 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "percent-encoding 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-segmentation 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -376,56 +382,69 @@ version = "0.21.0"
 dependencies = [
  "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "maud_htmlescape 0.17.0",
- "syn 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "memchr"
-version = "2.2.1"
+version = "2.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "nom"
-version = "4.2.3"
+version = "5.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "version_check 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num-integer"
-version = "0.1.41"
+version = "0.1.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num-traits"
-version = "0.2.10"
+version = "0.2.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "once_cell"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "opaque-debug"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "parse-zoneinfo"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "regex 1.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "percent-encoding"
-version = "1.0.1"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "pest"
-version = "2.1.2"
+version = "2.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "ucd-trie 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ucd-trie 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -433,53 +452,45 @@ name = "pest_derive"
 version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "pest 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "pest_generator 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest_generator 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "pest_generator"
-version = "2.1.1"
+version = "2.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "pest 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "pest_meta 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest_meta 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "pest_meta"
-version = "2.1.2"
+version = "2.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "maplit 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "pest 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "sha-1 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sha-1 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "proc-macro-hack"
-version = "0.5.11"
+name = "ppv-lite86"
+version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
-name = "proc-macro2"
-version = "0.4.30"
+name = "proc-macro-hack"
+version = "0.5.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.6"
+version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -487,71 +498,90 @@ dependencies = [
 
 [[package]]
 name = "proc-quote"
-version = "0.2.2"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro-hack 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-quote-impl 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro-hack 0.5.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-quote-impl 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "proc-quote-impl"
-version = "0.2.2"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro-hack 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro-hack 0.5.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "quick-error"
-version = "1.2.2"
+version = "1.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "quote"
-version = "0.6.13"
+version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "quote"
-version = "1.0.2"
+name = "rand"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "getrandom 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_chacha 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "redox_syscall"
-version = "0.1.56"
+name = "rand_chacha"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "ppv-lite86 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
-name = "regex"
-version = "1.3.1"
+name = "rand_core"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aho-corasick 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "getrandom 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "regex-syntax"
-version = "0.6.12"
+name = "rand_hc"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
-name = "rustc-demangle"
-version = "0.1.16"
+name = "regex"
+version = "1.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "aho-corasick 0.7.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -561,48 +591,48 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "ryu"
-version = "1.0.2"
+version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "same-file"
-version = "1.0.5"
+version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-util 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "serde"
-version = "1.0.102"
+version = "1.0.113"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde_derive 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.113 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.102"
+version = "1.0.113"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.41"
+version = "1.0.55"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "ryu 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ryu 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.113 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "sha-1"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "block-buffer 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -619,54 +649,40 @@ dependencies = [
  "deunicode 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "smallvec"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "syn"
-version = "0.15.44"
+version = "1.0.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "syn"
-version = "1.0.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "tera"
-version = "0.11.20"
+version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "chrono 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "error-chain 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono-tz 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "globwalk 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "humansize 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "pest 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "percent-encoding 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "pest_derive 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.113 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "slug 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "unic-segment 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unic-segment 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "thread_local"
-version = "0.3.6"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -674,90 +690,73 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.1.42"
+version = "0.1.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "toml"
-version = "0.4.10"
+version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.113 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "typenum"
-version = "1.11.2"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "ucd-trie"
-version = "0.1.2"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
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-version = "0.7.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "unic-char-range 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unic-char-range 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "unic-char-range"
-version = "0.7.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "unic-common"
-version = "0.7.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "unic-segment"
-version = "0.7.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "unic-ucd-segment 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unic-ucd-segment 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "unic-ucd-segment"
-version = "0.7.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "unic-char-property 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "unic-char-range 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "unic-ucd-version 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unic-char-property 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unic-char-range 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unic-ucd-version 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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diff --git a/benchmarks/benches/liquid.rs b/benchmarks/benches/liquid.rs
index b00843c8..e2baa0a9 100644
--- a/benchmarks/benches/liquid.rs
+++ b/benchmarks/benches/liquid.rs
@@ -3,7 +3,7 @@
 extern crate test;
 
 use liquid::ParserBuilder;
-use liquid::value::{Object, Value};
+use liquid::model::{Object, Value};
 
 static SOURCE: &'static str = "<html>
   <head>
@@ -30,7 +30,7 @@ fn make_team(name: &'static str, score: u16) -> Value {
 
 #[bench]
 fn render_template(b: &mut test::Bencher) {
-    let template = test::black_box(ParserBuilder::with_liquid().build().unwrap().parse(SOURCE).unwrap());
+    let template = test::black_box(ParserBuilder::with_stdlib().build().unwrap().parse(SOURCE).unwrap());
     let mut globals = test::black_box({
         let mut globals = Object::new();
         globals.insert("year".into(), Value::scalar(2015));
diff --git a/docs/Cargo.lock b/docs/Cargo.lock
index bbbdcfb3..f0c48180 100644
--- a/docs/Cargo.lock
+++ b/docs/Cargo.lock
@@ -2,15 +2,15 @@
 # It is not intended for manual editing.
 [[package]]
 name = "adler32"
-version = "1.0.3"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "aho-corasick"
-version = "0.6.10"
+version = "0.7.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -18,148 +18,145 @@ name = "ansi_term"
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "arrayref"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "atty"
-version = "0.2.11"
+version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hermit-abi 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "autocfg"
-version = "0.1.2"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "base64"
-version = "0.10.1"
+version = "0.12.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "bincode"
-version = "1.1.2"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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- "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.113 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "bitflags"
-version = "1.0.4"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "block-buffer"
-version = "0.3.3"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "arrayref 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "byte-tools 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "block-padding 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byte-tools 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "generic-array 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "build_const"
-version = "0.2.1"
+name = "block-padding"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "byte-tools 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
 name = "byte-tools"
-version = "0.2.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "byteorder"
-version = "1.3.1"
+version = "1.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "cc"
-version = "1.0.31"
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 [[package]]
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+
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+ "num-integer 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
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- "vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "atty 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "vec_map 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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-version = "0.4.4"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clap 2.33.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "entities 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "pest 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "pest_derive 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "twoway 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "typed-arena 1.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "twoway 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "typed-arena 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode_categories 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "crc"
-version = "1.8.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "build_const 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "crc32fast"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cfg-if 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "digest"
-version = "0.7.6"
+version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "generic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "generic-array 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "docs"
 version = "0.0.0"
 dependencies = [
- "comrak 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "maud 0.20.0",
- "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntect 3.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "comrak 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "maud 0.21.0",
+ "serde_json 1.0.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntect 4.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -174,44 +171,52 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "flate2"
-version = "1.0.7"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "crc32fast 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "miniz-sys 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "miniz_oxide_c_api 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "miniz_oxide 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "fnv"
-version = "1.0.6"
+version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "generic-array"
-version = "0.9.0"
+version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "typenum 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "typenum 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "humantime"
-version = "1.2.0"
+name = "hermit-abi"
+version = "0.1.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "indexmap"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "quick-error 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "itoa"
-version = "0.4.3"
+version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "lazy_static"
-version = "1.3.0"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -221,7 +226,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.50"
+version = "0.2.71"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -229,22 +234,17 @@ name = "line-wrap"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "safemem 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "safemem 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "linked-hash-map"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "literalext"
-version = "0.1.1"
+version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "maplit"
-version = "1.0.1"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -254,10 +254,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "maud"
-version = "0.20.0"
+version = "0.21.0"
 dependencies = [
  "maud_htmlescape 0.17.0",
- "maud_macros 0.20.0",
+ "maud_macros 0.21.0",
 ]
 
 [[package]]
@@ -266,72 +266,74 @@ version = "0.17.0"
 
 [[package]]
 name = "maud_macros"
-version = "0.20.0"
+version = "0.21.0"
 dependencies = [
- "literalext 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "maud_htmlescape 0.17.0",
+ "syn 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "memchr"
-version = "2.2.0"
+version = "2.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "miniz-sys"
-version = "0.1.11"
+name = "miniz_oxide"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "adler32 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "miniz_oxide"
-version = "0.2.1"
+name = "num-integer"
+version = "0.1.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "adler32 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "miniz_oxide_c_api"
-version = "0.2.1"
+name = "num-traits"
+version = "0.2.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
- "crc 1.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "miniz_oxide 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "onig"
-version = "4.3.2"
+version = "6.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "onig_sys 69.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)",
+ "onig_sys 69.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "onig_sys"
-version = "69.1.0"
+version = "69.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "opaque-debug"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "pest"
-version = "2.1.0"
+version = "2.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "ucd-trie 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ucd-trie 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -339,256 +341,225 @@ name = "pest_derive"
 version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "pest 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "pest_generator 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest_generator 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "pest_generator"
-version = "2.1.0"
+version = "2.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "pest 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "pest_meta 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest_meta 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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-version = "2.1.0"
+version = "2.1.3"
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 dependencies = [
- "maplit 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "pest 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sha-1 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "maplit 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sha-1 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "pkg-config"
-version = "0.3.14"
+version = "0.3.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
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- "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "humantime 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "base64 0.12.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "indexmap 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
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- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
- "xml-rs 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.113 (registry+https://github.com/rust-lang/crates.io-index)",
+ "xml-rs 0.8.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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+version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "quick-error"
-version = "1.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
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-
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 dependencies = [
- "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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- "utf8-ranges 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aho-corasick 0.7.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
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- "ucd-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
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 [[package]]
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 [[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-util 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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-version = "1.0.89"
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 [[package]]
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- "quote 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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- "ryu 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ryu 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.113 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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- "byte-tools 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "digest 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
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