[Auth] handle user registration
[DB] user in default rank
[Auth] change redirection
[Permission] handle admin restrictions
[Users] fix update blank password
[Tests] add user session in tests
Merge pull request #14 from hack1337/feature/auth

Feature/auth
Merge branch 'preprod' of github.com:hack1337/rails-twitter-like into front/home
[Home] skip home page admin login