Add transform-object-assign to .babelrc -> support Node 0.12

Author: motiz88

.babelrc

@@ -4,5 +4,8 @@
       "es2015",
       "stage-1"
     ],
+    "plugins": [
+      "transform-object-assign"
+    ],
     "sourceMaps": true,
 }

package.json

@@ -37,6 +37,7 @@
     "babel": "^6.5.2",
     "babel-core": "^6.7.2",
     "babel-loader": "^6.2.4",
+    "babel-plugin-transform-object-assign": "^6.5.0",
     "babel-preset-es2015": "^6.6.0",
     "babel-preset-react": "^6.5.0",
     "babel-preset-stage-1": "^6.5.0",
@@ -46,10 +47,10 @@
     "hiff": "^0.3.0",
     "line-by-line": "^0.1.4",
     "mocha": "^2.4.5",
-    "react-addons-test-utils": "^0.14.7",
     "react": "^0.14.7",
-    "react-element-to-jsx-string": "=2.5.0",
+    "react-addons-test-utils": "^0.14.7",
     "react-dom": "^0.14.7",
+    "react-element-to-jsx-string": "=2.5.0",
     "replaceall": "^0.1.6",
     "webpack": "^2.1.0-beta.4",
     "webpack-dev-server": "^2.0.0-beta"