Adding Rails sample

Adding a Rails sample application whose functionality matches Sinatra app. User can log in, log out, create an account, edit an account, delete an account. User can request a password reset and can verify locally if workflow has been set up correctly. If user-verification enabled on directory into which developer is creating users, the verification step can be handled by the Rails application as well.

Additionally:

1. Modifying markup to match Sinatra application (which works with Bootstrap).
1. Adding some success-messaging after user-creation and user-editing
1. Applying Bootstrap styles throughout Rails sample app