Add Mongo(id), remove ActiveRecord

You must install Mongo on your computer now to run the server.
Also remove CanCan, which we aren't going to use anyway.
Merge branch 'master' of https://github.com/NicholasHanemann/team9-project3 into mongo
Fix User by adding name field
Merge branch 'master' of https://github.com/NicholasHanemann/team9-project3 into mongo
Get rid of has_role
Merge branch 'master' of https://github.com/NicholasHanemann/team9-project3 into mongo
Merge branch 'master' of https://github.com/NicholasHanemann/team9-project3 into mongo