Make bin/dev executable

Signed-off-by: Alexander Mays <[email protected]>

Author: Alexander Mays

bin/dev

@@ -39,7 +39,7 @@
     "nodemon": "^1.8.1"
   },
   "scripts": {
-    "dev": "npm run build && node bin/dev",
+    "dev": "npm run build && bin/dev",
     "build": "./node_modules/.bin/babel src/ -d lib/",
     "pretest": "MONGODB_VERSION=${MONGODB_VERSION:=3.0.8} mongodb-runner start",
     "test": "NODE_ENV=test TESTING=1 ./node_modules/.bin/babel-node ./node_modules/.bin/babel-istanbul cover -x **/spec/** ./node_modules/.bin/jasmine",