upgrade webpack-related deps and config to latest

package.json

@@ -16,16 +16,16 @@
     "babel-core": "^6.17.0",
     "babel-loader": "^6.2.4",
     "babel-preset-es2015": "^6.16.0",
-    "copy-webpack-plugin": "^3.0.1",
-    "css-loader": "^0.25.0",
+    "copy-webpack-plugin": "^4.0.1",
+    "css-loader": "^0.26.1",
     "extract-text-webpack-plugin": "^2.0.0-beta.4",
     "file-loader": "^0.9.0",
     "handlebars-loader": "^1.3.0",
     "node-sass": "^3.11.2",
     "sass-loader": "^4.0.0",
     "style-loader": "^0.13.1",
-    "webpack": "^2.1.0-beta.25",
-    "webpack-merge": "^0.14.0"
+    "webpack": "^2.1.0-beta.27",
+    "webpack-merge": "^1.0.2"
   },
   "scripts": {
     "start": "webpack --watch-stdin --color",

webpack.config.js

@@ -9,7 +9,7 @@ var common = {
       {
         test: /\.js$/,
         exclude: [/node_modules/, /semantic/, /uploads/],
-        loader: "babel",
+        loader: "babel-loader",
         options: {
           presets: ["es2015"]
         }
@@ -20,15 +20,15 @@ var common = {
       },
       {
         test: [/\.sass$/, /\.css$/],
-        loader: ExtractTextPlugin.extract({fallbackLoader: "style", loader: "css!sass"})
+        loader: ExtractTextPlugin.extract({fallbackLoader: "style-loader", loader: "css-loader!sass-loader"})
       },
       {
         test: /\.(png|jpg|gif|svg)$/,
-        loader: "file?name=/images/[name].[ext]"
+        loader: "file-loader?name=/images/[name].[ext]"
       },
       {
         test: /\.(ttf|eot|svg|woff2?)$/,
-        loader: "file?name=/fonts/[name].[ext]",
+        loader: "file-loader?name=/fonts/[name].[ext]",
       }
     ]
   },