[change] Use animatedjs/animated

Depend on 'animatedjs/animated' for the Animation implementation. This
patch also replaces 'es6-set' with a small shim to reduce impact on
production bundle size.

Fix #95

webpack.config.js

@@ -1,4 +1,5 @@
-var webpack = require('webpack')
+const path = require('path')
+const webpack = require('webpack')
 
 const DIST_DIRECTORY = './dist'
 
@@ -8,13 +9,18 @@ module.exports = {
   },
   output: {
     filename: 'ReactNative.js',
-    library: 'React',
+    library: 'ReactNative',
     libraryTarget: 'umd',
     path: DIST_DIRECTORY
   },
   plugins: [
     new webpack.DefinePlugin({ 'process.env.NODE_ENV': JSON.stringify('production') }),
     new webpack.optimize.DedupePlugin(),
+    // https://github.com/animatedjs/animated/issues/40
+    new webpack.NormalModuleReplacementPlugin(
+      /es6-set/,
+      path.join(__dirname, 'src/modules/polyfills/Set.js')
+    ),
     new webpack.optimize.OccurenceOrderPlugin(),
     new webpack.optimize.UglifyJsPlugin({
       compress: {