chore: upgrade dev dependencies

Author: Matt Lewis

package.json

@@ -78,7 +78,7 @@
     "karma-sourcemap-loader": "~0.3.7",
     "karma-webpack": "~1.8.0",
     "moment": "~2.15.0",
-    "node-sass": "~3.10.0",
+    "node-sass": "3.11.1",
     "phantomjs-prebuilt": "~2.1.7",
     "postcss-flexibility": "~1.1.0",
     "postcss-loader": "~1.1.0",

yarn.lock

@@ -3502,9 +3502,9 @@ node-pre-gyp@^0.6.29:
     tar "~2.2.1"
     tar-pack "~3.3.0"
 
-node-sass@~3.10.0:
-  version "3.10.1"
-  resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-3.10.1.tgz#c535b2e1a5439240591e06d7308cb663820d616c"
+node-sass@3.11.1:
+  version "3.11.1"
+  resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-3.11.1.tgz#0b25699663cc9d616e8c6fb874e7d9b25e5a8e20"
   dependencies:
     async-foreach "^0.1.3"
     chalk "^1.1.1"