Gemfile change for Rails 4.

Still not even tested for functionality
Removing unsupported code. Tests now run (but don't pass)
Allowing for server to start.

My previous symbolic link was causing the update:bin rake test to go nuts.
Gotta find a better solution for vagrant now that it relies on bin folder to run on host.
Upgrading rails to 4.0.12. Fixing login.

Upgrading coffee-rails and sass-rails as well.
Fixed a user deprecationg warning.
Functional rails 4.

Seems like most was taken care of with this.
Some html_safe missing and we should be good to call #61 done