chore(package): update style-loader to version 0.20.2

Closes #32

Author: greenkeeper[bot]

package.json

@@ -60,7 +60,7 @@
     "postcss-cssnext": "^2.7.0",
     "postcss-loader": "^1.2.2",
     "regenerator": "^0.10.0",
-    "style-loader": "^0.16.0",
+    "style-loader": "^0.20.2",
     "url-loader": "^0.5.7",
     "webpack": "^1.13.1",
     "webpack-dev-server": "^2.4.1",