Add support for MONGOLAB_URI env var for Heroku
Add support for MONGOLAB_URI env var for Heroku

nirdeshdwa/appmaker,uche40/appmaker,nirdeshdwa/appmaker,valmzetvn/appmaker,mozilla-appmaker/appmaker,uche40/appmaker,sheafferusa/appmaker,nirdeshdwa/appmaker,mozilla-appmaker/appmaker,vaginessa/appmaker,ekospinach/appmaker,pcoughlin/appmaker,lexoyo/appmaker,ekospinach/appmaker,sheafferusa/appmaker,lexoyo/appmaker,secretrobotron/appmaker,mozilla-appmaker/appmaker,valmzetvn/appmaker,sheafferusa/appmaker,uche40/appmaker,vaginessa/appmaker,pcoughlin/appmaker,vaginessa/appmaker,pcoughlin/appmaker,secretrobotron/appmaker,lexoyo/appmaker,ekospinach/appmaker,valmzetvn/appmaker