Depend on updated code-dot-org/react-color

Our react-color fork has been updated to match casesandberg/react-color, except that it still depends on our own reactcss fork.  I'd just set our dependency back to npm react-color@2.1.0 but it's still pointing to npm's reactcss which didn't get a version bump for its react 15 fix and probably still depends on react 14.  Keeping our fork for now to ensure we don't ship more than one version of react.

apps/package.json

@@ -121,6 +121,6 @@
     "query-string": "4.1.0",
     "filesaver.js": "0.2.0",
     "jszip": "3.0.0",
-    "react-color": "code-dot-org/react-color#f0c7c3bc1fabb149ecc76902d1510cb761aa311d"
+    "react-color": "code-dot-org/react-color#65a688f0ed61da00acea95cb1c8aa0c691b3839e"
   }
 }