Use object-assign lib rather than the React.js polyfill.

Author: marnusw

CHANGELOG.md

@@ -1,3 +1,8 @@
+### v1.1.2 (9 April 2016)
+
+* [UPGRADE] Use the `object-assign` lib, as [React 15 does](https://github.com/facebook/react/pull/6376), rather
+            than `react/lib/Object.assign` which has been removed. (#14)
+
 ### v1.1.1 (4 April 2016)
 
 * [BUGFIX] Corrected the file name in the `main` field of package.json. (#13)

package.json

@@ -14,6 +14,7 @@
     "prepublish": "npm run build"
   },
   "dependencies": {
+    "object-assign": "^4.0.1",
     "react-addons-css-transition-group": "^0.14.0"
   },
   "peerDependencies": {
@@ -29,7 +30,7 @@
     "del": "^2.0.2",
     "eslint": "^1.6.0",
     "eslint-plugin-react": "^3.5.1",
-    "gulp": "^3.9.0",
+    "gulp": "^3.9.1",
     "gulp-eslint": "^1.0.0",
     "gulp-flatten": "^0.2.0",
     "gulp-notify": "^2.2.0",

src/ReactCSSTransitionReplace.jsx

@@ -6,7 +6,7 @@
 
 import React from 'react';
 import ReactDOM from 'react-dom';
-import objectAssign from 'react/lib/Object.assign';
+import objectAssign from 'object-assign';
 
 import ReactCSSTransitionGroupChild from 'react/lib/ReactCSSTransitionGroupChild';