update dependencies for latest version

Author: Alex Kahn

package.json

@@ -23,10 +23,10 @@
   "license": "MIT",
   "dependencies": {
     "fg-lodash": "0.0.2",
-    "request": "2.51.x"
+    "request": "2.55.x"
   },
   "devDependencies": {
-    "chai": "~1.9.1",
-    "mocha": "~1.18.2"
+    "chai": "~2.3.0",
+    "mocha": "~2.2.4"
   }
 }