chore(package): update babel-plugin-rewire to version 1.2.0

Closes #243

Author: greenkeeper[bot]

package.json

@@ -36,7 +36,7 @@
     "babel-core": "6.21.0",
     "babel-eslint": "7.1.1",
     "babel-loader": "6.2.10",
-    "babel-plugin-rewire": "1.0.0",
+    "babel-plugin-rewire": "1.2.0",
     "babel-polyfill": "6.20.0",
     "babel-preset-es2015": "6.18.0",
     "babel-preset-react": "6.16.0",