chore(*): setup babel-preset-react-hmre - enhancement of previous commit

As exposed in https://github.com/danmartinez101/babel-preset-react-hmre this preset ships the following transformers:
* babel-plugin-react-transform (the babel plugin that makes it all possible): https://github.com/gaearon/babel-plugin-react-transform
* react-transform-hmr (transformer in charge of hot module reloading): https://github.com/gaearon/react-transform-hmr
* react-transform-catch-errors (will show runtime errors on screen): https://github.com/gaearon/react-transform-catch-errors
* redbox-react (the component used by catch-errors): https://github.com/KeywordBrain/redbox-react

This preset abstracts all those plugins in one package. All you have to do to have your React project ready for hor reload on babel v6 is now:

npm install babel-preset-react-hmre --save-dev

And set your .babelrc to (the preset part being important):

{
  "presets": ["react", "es2015"],
  "env": {
    "development": {
      "presets": ["react-hmre"]
    }
  }
}

If you prefer to know exactly what you're using (not a preset that abstracts a bunch of plugins, take a look at #90c6088 )

.babelrc

@@ -4,17 +4,7 @@
   "env": {
     // only enable it when process.env.NODE_ENV is 'development' or undefined
     "development": {
-      "plugins": [["react-transform", {
-        "transforms": [{
-          "transform": "react-transform-hmr",
-          // if you use React Native, pass "react-native" instead:
-          "imports": ["react"],
-          // this is important for Webpack HMR:
-          "locals": ["module"]
-        }]
-        // note: you can put more transforms into array
-        // this is just one of them!
-      }]]
+      "presets": ["react-hmre"]
     }
   }
 }

package.json

@@ -55,12 +55,12 @@
     "babel-eslint": "^5.0.0",
     "babel-loader": "^6.2.4",
     "babel-plugin-add-module-exports": "^0.1.2",
-    "babel-plugin-react-transform": "^2.0.2",
     "babel-plugin-transform-class-properties": "^6.6.0",
     "babel-plugin-transform-es2015-destructuring": "^6.6.5",
     "babel-plugin-transform-object-rest-spread": "^6.6.5",
     "babel-preset-es2015": "^6.6.0",
     "babel-preset-react": "^6.5.0",
+    "babel-preset-react-hmre": "^1.1.1",
     "css-loader": "^0.23.1",
     "del": "^2.0.2",
     "eslint": "^1.10.3",
@@ -87,7 +87,6 @@
     "pre-commit": "^1.1.2",
     "protractor": "^3.0.0",
     "react-addons-test-utils": "^0.14.7",
-    "react-transform-hmr": "^1.0.4",
     "sass-loader": "^3.1.2",
     "serve": "^1.4.0",
     "style-loader": "^0.13.0",