diff --git a/package-lock.json b/package-lock.json
index 43f8ade..edbf5dc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2194,7 +2194,8 @@
         },
         "ansi-regex": {
           "version": "2.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.1.1",
@@ -2237,7 +2238,8 @@
         },
         "balanced-match": {
           "version": "0.4.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "bcrypt-pbkdf": {
           "version": "1.0.1",
@@ -2250,6 +2252,7 @@
         "block-stream": {
           "version": "0.0.9",
           "bundled": true,
+          "optional": true,
           "requires": {
             "inherits": "2.0.3"
           }
@@ -2257,6 +2260,7 @@
         "boom": {
           "version": "2.10.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "hoek": "2.16.3"
           }
@@ -2264,6 +2268,7 @@
         "brace-expansion": {
           "version": "1.1.7",
           "bundled": true,
+          "optional": true,
           "requires": {
             "balanced-match": "0.4.2",
             "concat-map": "0.0.1"
@@ -2271,7 +2276,8 @@
         },
         "buffer-shims": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "caseless": {
           "version": "0.12.0",
@@ -2285,30 +2291,36 @@
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "combined-stream": {
           "version": "1.0.5",
           "bundled": true,
+          "optional": true,
           "requires": {
             "delayed-stream": "1.0.0"
           }
         },
         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "cryptiles": {
           "version": "2.0.5",
           "bundled": true,
+          "optional": true,
           "requires": {
             "boom": "2.10.1"
           }
@@ -2343,7 +2355,8 @@
         },
         "delayed-stream": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "delegates": {
           "version": "1.0.0",
@@ -2370,7 +2383,8 @@
         },
         "extsprintf": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "forever-agent": {
           "version": "0.6.1",
@@ -2389,11 +2403,13 @@
         },
         "fs.realpath": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "fstream": {
           "version": "1.0.11",
           "bundled": true,
+          "optional": true,
           "requires": {
             "graceful-fs": "4.1.11",
             "inherits": "2.0.3",
@@ -2444,6 +2460,7 @@
         "glob": {
           "version": "7.1.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "fs.realpath": "1.0.0",
             "inflight": "1.0.6",
@@ -2455,7 +2472,8 @@
         },
         "graceful-fs": {
           "version": "4.1.11",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "har-schema": {
           "version": "1.0.5",
@@ -2479,6 +2497,7 @@
         "hawk": {
           "version": "3.1.3",
           "bundled": true,
+          "optional": true,
           "requires": {
             "boom": "2.10.1",
             "cryptiles": "2.0.5",
@@ -2488,7 +2507,8 @@
         },
         "hoek": {
           "version": "2.16.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "http-signature": {
           "version": "1.1.1",
@@ -2503,6 +2523,7 @@
         "inflight": {
           "version": "1.0.6",
           "bundled": true,
+          "optional": true,
           "requires": {
             "once": "1.4.0",
             "wrappy": "1.0.2"
@@ -2510,7 +2531,8 @@
         },
         "inherits": {
           "version": "2.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.4",
@@ -2520,6 +2542,7 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "1.0.1"
           }
@@ -2531,7 +2554,8 @@
         },
         "isarray": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "isstream": {
           "version": "0.1.2",
@@ -2594,11 +2618,13 @@
         },
         "mime-db": {
           "version": "1.27.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "mime-types": {
           "version": "2.1.15",
           "bundled": true,
+          "optional": true,
           "requires": {
             "mime-db": "1.27.0"
           }
@@ -2606,17 +2632,20 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "1.1.7"
           }
         },
         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -2666,7 +2695,8 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "oauth-sign": {
           "version": "0.8.2",
@@ -2681,6 +2711,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "wrappy": "1.0.2"
           }
@@ -2706,7 +2737,8 @@
         },
         "path-is-absolute": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "performance-now": {
           "version": "0.2.0",
@@ -2715,7 +2747,8 @@
         },
         "process-nextick-args": {
           "version": "1.0.7",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "punycode": {
           "version": "1.4.1",
@@ -2748,6 +2781,7 @@
         "readable-stream": {
           "version": "2.2.9",
           "bundled": true,
+          "optional": true,
           "requires": {
             "buffer-shims": "1.0.0",
             "core-util-is": "1.0.2",
@@ -2790,13 +2824,15 @@
         "rimraf": {
           "version": "2.6.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "glob": "7.1.2"
           }
         },
         "safe-buffer": {
           "version": "5.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "semver": {
           "version": "5.3.0",
@@ -2816,6 +2852,7 @@
         "sntp": {
           "version": "1.0.9",
           "bundled": true,
+          "optional": true,
           "requires": {
             "hoek": "2.16.3"
           }
@@ -2846,6 +2883,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "code-point-at": "1.1.0",
             "is-fullwidth-code-point": "1.0.0",
@@ -2855,6 +2893,7 @@
         "string_decoder": {
           "version": "1.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "5.0.1"
           }
@@ -2867,6 +2906,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "2.1.1"
           }
@@ -2879,6 +2919,7 @@
         "tar": {
           "version": "2.2.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "block-stream": "0.0.9",
             "fstream": "1.0.11",
@@ -2928,7 +2969,8 @@
         },
         "util-deprecate": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "uuid": {
           "version": "3.0.1",
@@ -2953,7 +2995,8 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         }
       }
     },
diff --git a/yarn.lock b/yarn.lock
index a5f84a6..c7fba60 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -369,6 +369,12 @@ babel-plugin-module-resolver@^2.7.1:
     glob "^7.1.1"
     resolve "^1.2.0"
 
+babel-plugin-react-transform@2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/babel-plugin-react-transform/-/babel-plugin-react-transform-2.0.2.tgz#515bbfa996893981142d90b1f9b1635de2995109"
+  dependencies:
+    lodash "^4.6.1"
+
 babel-plugin-react-transform@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-react-transform/-/babel-plugin-react-transform-3.0.0.tgz#402f25137b7bb66e9b54ead75557dfbc7ecaaa74"
@@ -724,6 +730,40 @@ babel-preset-fbjs@^2.1.2, babel-preset-fbjs@^2.1.4:
     babel-plugin-transform-react-display-name "^6.8.0"
     babel-plugin-transform-react-jsx "^6.8.0"
 
+babel-preset-react-native@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/babel-preset-react-native/-/babel-preset-react-native-2.1.0.tgz#9013ebd82da1c88102bf588810ff59e209ca2b8a"
+  dependencies:
+    babel-plugin-check-es2015-constants "^6.5.0"
+    babel-plugin-react-transform "2.0.2"
+    babel-plugin-syntax-async-functions "^6.5.0"
+    babel-plugin-syntax-class-properties "^6.5.0"
+    babel-plugin-syntax-flow "^6.5.0"
+    babel-plugin-syntax-jsx "^6.5.0"
+    babel-plugin-syntax-trailing-function-commas "^6.5.0"
+    babel-plugin-transform-class-properties "^6.5.0"
+    babel-plugin-transform-es2015-arrow-functions "^6.5.0"
+    babel-plugin-transform-es2015-block-scoping "^6.5.0"
+    babel-plugin-transform-es2015-classes "^6.5.0"
+    babel-plugin-transform-es2015-computed-properties "^6.5.0"
+    babel-plugin-transform-es2015-destructuring "^6.5.0"
+    babel-plugin-transform-es2015-for-of "^6.5.0"
+    babel-plugin-transform-es2015-function-name "^6.5.0"
+    babel-plugin-transform-es2015-literals "^6.5.0"
+    babel-plugin-transform-es2015-modules-commonjs "^6.5.0"
+    babel-plugin-transform-es2015-parameters "^6.5.0"
+    babel-plugin-transform-es2015-shorthand-properties "^6.5.0"
+    babel-plugin-transform-es2015-spread "^6.5.0"
+    babel-plugin-transform-es2015-template-literals "^6.5.0"
+    babel-plugin-transform-flow-strip-types "^6.5.0"
+    babel-plugin-transform-object-assign "^6.5.0"
+    babel-plugin-transform-object-rest-spread "^6.5.0"
+    babel-plugin-transform-react-display-name "^6.5.0"
+    babel-plugin-transform-react-jsx "^6.5.0"
+    babel-plugin-transform-react-jsx-source "^6.5.0"
+    babel-plugin-transform-regenerator "^6.5.0"
+    react-transform-hmr "^1.0.4"
+
 babel-preset-react-native@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/babel-preset-react-native/-/babel-preset-react-native-4.0.0.tgz#3df80dd33a453888cdd33bdb87224d17a5d73959"
@@ -2492,7 +2532,7 @@ methods@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
 
-metro-core@0.24.7, metro-core@^0.24.3:
+metro-core@0.24.7, metro-core@^0.24.4:
   version "0.24.7"
   resolved "https://registry.yarnpkg.com/metro-core/-/metro-core-0.24.7.tgz#89e4fbea5bad574eb971459ebfa74c028f52d278"
   dependencies:
@@ -2504,7 +2544,7 @@ metro-source-map@0.24.7:
   dependencies:
     source-map "^0.5.6"
 
-metro@^0.24.3:
+metro@^0.24.4:
   version "0.24.7"
   resolved "https://registry.yarnpkg.com/metro/-/metro-0.24.7.tgz#42cecdb236b702d16243812294f7d3b97c43378d"
   dependencies:
@@ -3290,9 +3330,10 @@ react-native-vector-icons@~4.4.2:
     prop-types "^15.5.10"
     yargs "^8.0.2"
 
-react-native@*:
-  version "0.53.3"
-  resolved "https://registry.yarnpkg.com/react-native/-/react-native-0.53.3.tgz#930d1de5d68866f32a4b55112fc0228e29784e8f"
+"react-native@https://github.com/expo/react-native/archive/sdk-25.0.0.tar.gz":
+  version "0.52.0"
+  uid e46ac1a9ff6d48db801c1937c5c2ea9353415818
+  resolved "https://github.com/expo/react-native/archive/sdk-25.0.0.tar.gz#e46ac1a9ff6d48db801c1937c5c2ea9353415818"
   dependencies:
     absolute-path "^0.0.0"
     art "^0.10.0"
@@ -3321,8 +3362,8 @@ react-native@*:
     graceful-fs "^4.1.3"
     inquirer "^3.0.6"
     lodash "^4.16.6"
-    metro "^0.24.3"
-    metro-core "^0.24.3"
+    metro "^0.24.4"
+    metro-core "^0.24.4"
     mime "^1.3.4"
     minimist "^1.2.0"
     mkdirp "^0.5.1"
@@ -4018,8 +4059,8 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
 
 ua-parser-js@^0.7.9:
-  version "0.7.17"
-  resolved "https://registry.yarnpkg.com/ua-parser-js/-/ua-parser-js-0.7.17.tgz#e9ec5f9498b9ec910e7ae3ac626a805c4d09ecac"
+  version "0.7.33"
+  resolved "https://registry.yarnpkg.com/ua-parser-js/-/ua-parser-js-0.7.33.tgz#1d04acb4ccef9293df6f70f2c3d22f3030d8b532"
 
 uglify-es@^3.1.9:
   version "3.3.10"