Add transform runtime for #3

Author: chibicode

.babelrc

@@ -1,4 +1,4 @@
 {
-  "plugins": ["transform-decorators-legacy"],
+  "plugins": ["transform-decorators-legacy", "transform-runtime"],
   "presets": ["es2015-loose", "stage-0", "react"]
 }

package.json

@@ -5,7 +5,7 @@
   "main": "lib/index.js",
   "scripts": {
     "clean": "rimraf lib",
-    "build": "babel src --optional runtime --out-dir lib",
+    "build": "babel src --out-dir lib",
     "lint": "eslint src test examples",
     "test": "NODE_ENV=test mocha --compilers js:babel-core/register --recursive",
     "test:watch": "NODE_ENV=test mocha --compilers js:babel-core/register --recursive --watch",
@@ -51,6 +51,7 @@
     "react": "^0.14.0"
   },
   "dependencies": {
+    "babel-plugin-transform-runtime": "^6.5.0",
     "babel-runtime": "^6.3.13",
     "react-mixin": "^1.7.0"
   }