chore(package): update multer to version 1.2.1

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -65,7 +65,7 @@
     "material-ui": "^0.16.4",
     "mocha": "^3.0.0",
     "moment": "^2.16.0",
-    "multer": "^1.2.0",
+    "multer": "^1.2.1",
     "npm": "^3.10.9",
     "numbro": "^1.9.3",
     "path": "^0.12.7",