chore(package): update react-dom to version 15.0.1

http://greenkeeper.io/

package.json

@@ -137,7 +137,7 @@
     "mocha": "2.4.5",
     "node-sass": "3.4.2",
     "react-addons-test-utils": "15.0.1",
-    "react-dom": "0.14.8",
+    "react-dom": "15.0.1",
     "react-hot-loader": "1.3.0",
     "react-transform-hmr": "1.0.4",
     "redux-devtools": "3.2.0",