concurrently: cleaner cmdline, and moar colors

{{cookiecutter.app_name}}/package.json

@@ -9,7 +9,9 @@
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
     "build": "NODE_ENV=production ./node_modules/.bin/webpack --progress --colors -p",
-    "start": "NODE_ENV=debug FLASK_APP=$PWD/autoapp.py FLASK_DEBUG=1 ./node_modules/.bin/concurrently --names \"WEBPACK,FLASK\" \"./node_modules/.bin/webpack-dev-server --port 2992 --hot --inline\" \"flask run\"",
+    "start": "./node_modules/.bin/concurrently -n \"WEBPACK,FLASK\" -c \"bgBlue.bold,bgMagenta.bold\" \"npm run webpack-dev-server\" \"npm run flask-server\"",
+    "webpack-dev-server": "NODE_ENV=debug ./node_modules/.bin/webpack-dev-server --port 2992 --hot --inline",
+    "flask-server": "FLASK_APP=$PWD/autoapp.py FLASK_DEBUG=1 flask run",
     "lint": "eslint \"assets/js/*.js\""
   },
   "repository": {