Update bluebird to 2.9.12

Author: hnrch02

package.json

@@ -55,7 +55,7 @@
   },
   "dependencies": {
     "binary-search": "^1.2.0",
-    "bluebird": "^2.4.0",
+    "bluebird": "^2.9.12",
     "body-parser": "^1.12.0",
     "chalk": "^0.5.1",
     "cheerio": "^0.18.0",