Update moment dependency version

The previous version removed an internal method we relied on for
fetching the months in the months view. By updating the version and
applying the fix in the next commit this bug is now fixed.

Author: simeg

package.json

@@ -37,7 +37,7 @@
   "peerDependencies": {
     "react": ">=0.13",
     "react-dom": ">=0.13",
-    "moment": ">=2.8.1"
+    "moment": ">=2.16.0"
   },
   "devDependencies": {
     "eslint": "^3.1.0",
@@ -47,7 +47,7 @@
     "gulp-webpack": "^1.5.0",
     "jsdom": "^7.0.2",
     "mocha": "^2.2.5",
-    "moment": "2.14.1",
+    "moment": ">=2.16.0",
     "pre-commit": "^1.1.3",
     "react": ">=0.13",
     "react-addons-test-utils": ">=0.13",