Add style-loader & css-loader dependency

package.json

@@ -7,6 +7,7 @@
     "babel-loader": "^5.3.2",
     "browser-sync": "^2.8.2",
     "chai": "^3.2.0",
+    "css-loader": "^0.15.6",
     "cssnext": "^1.8.2",
     "del": "^1.2.0",
     "eslint": "^1.0.0",
@@ -28,6 +29,7 @@
     "react": "^0.13.3",
     "react-hot-loader": "^1.2.8",
     "run-sequence": "^1.1.2",
+    "style-loader": "^0.12.3",
     "through2": "^2.0.0",
     "url-loader": "^0.5.6",
     "vinyl": "^0.5.0",