reverting back express version

package.json

@@ -16,7 +16,7 @@
     "body-parser": "~1.12.2",
     "cookie-parser": "~1.3.4",
     "errorhandler": "~1.3.5",
-    "express": "~4.10.1",
+    "express": "~4.13.4",
     "fluent-ffmpeg": "^2.0.0-rc3",
     "gm": "^1.17.0",
     "http-auth": "~2.2.5",