Remove string_cache dependency and the "unstable" cargo feature

Author: SimonSapin

.travis.yml

@@ -5,7 +5,6 @@ rust:
     - stable
 script:
     - cargo test
-    - ([ $TRAVIS_RUST_VERSION != nightly ] || cargo test --features unstable)
 
 branches:
   except:

Cargo.toml

@@ -3,7 +3,7 @@
 name = "selectors"
 version = "0.14.0"
 authors = ["Simon Sapin <simon.sapin@exyr.org>", "Alan Jeffrey <ajeffrey@mozilla.com>"]
-documentation = "http://doc.servo.org/selectors/"
+documentation = "https://docs.rs/selectors/"
 
 description = "CSS Selectors matching for Rust"
 repository = "https://github.com/servo/rust-selectors"
@@ -12,14 +12,12 @@ keywords = ["css", "selectors"]
 license = "MPL-2.0"
 
 [features]
-unstable = ["string_cache/unstable"]
-heap_size = ["string_cache/heap_size", "heapsize", "heapsize_plugin"]
+heap_size = ["heapsize", "heapsize_plugin"]
 
 [dependencies]
 bitflags = "0.7"
 matches = "0.1"
 cssparser = ">=0.6, <0.8"
 fnv = "1.0"
-string_cache = "0.2.16"
 heapsize = {version = "0.3", features = ["unstable"], optional = true}
 heapsize_plugin = {version = "0.1.0", optional = true}

src/lib.rs

@@ -2,15 +2,13 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-#![cfg_attr(all(test, feature = "unstable"), feature(test))]
 #![cfg_attr(feature = "heap_size", feature(plugin, custom_derive))]
 #![cfg_attr(feature = "heap_size", plugin(heapsize_plugin))]
 
 #[cfg(feature = "heap_size")] extern crate heapsize;
 #[macro_use] extern crate bitflags;
 #[macro_use] extern crate cssparser;
 #[macro_use] extern crate matches;
-#[macro_use] extern crate string_cache;
 extern crate fnv;
 
 pub mod bloom;