Update webpack and extract-text-loader

Should resolve some issues involving CSS order in the production output.

Possible fix for bradleyboy#20

package.json

@@ -26,7 +26,7 @@
     "css-loader": "^0.14.0",
     "eslint": "^0.17.1",
     "eslint-loader": "^0.7.0",
-    "extract-text-webpack-plugin": "^0.3.8",
+    "extract-text-webpack-plugin": "^0.8.2",
     "file-loader": "^0.8.1",
     "gh-pages": "^0.2.0",
     "html-webpack-plugin": "^1.1.0",
@@ -46,7 +46,7 @@
     "sass-loader": "^1.0.0",
     "style-loader": "^0.12.0",
     "url-loader": "^0.5.5",
-    "webpack": "^1.7.3",
-    "webpack-dev-server": "^1.7.0"
+    "webpack": "^1.9.0",
+    "webpack-dev-server": "^1.9.0"
   }
 }