Merge pull request #3805 from gilbode/ft/react_15_6_2

Upgrade to react 15.6.2.

Author: shockey

package.json

@@ -56,12 +56,12 @@
     "memoizee": "0.4.1",
     "promise-worker": "^1.1.1",
     "prop-types": "^15.5.10",
-    "react": "^15.4.0",
+    "react": "^15.6.2",
     "react-addons-perf": "^15.4.0",
     "react-addons-shallow-compare": "0.14.8",
-    "react-addons-test-utils": "^15.4.0",
+    "react-addons-test-utils": "^15.6.2",
     "react-collapse": "2.3.1",
-    "react-dom": "^15.4.0",
+    "react-dom": "^15.6.2",
     "react-height": "^2.0.0",
     "react-hot-loader": "1.3.1",
     "react-immutable-proptypes": "2.1.0",