Update when dep to 3.4.6

Fixes #282
Fixes #286

Author: mjackson

package.json

@@ -44,7 +44,7 @@
     "events": "1.0.1",
     "flux": "2.0.1",
     "qs": "2.2.2",
-    "when": "^3.4.4"
+    "when": "3.4.6"
   },
   "tags": [
     "react",