Added a new user controller and updated user model and migration
Changed gemfile to include bcrypt
Update user model and user migration file
Updated Users controller, added actions for creating a new one
Created sessions controller and view 'new'
update sessions controller
Updated routes file and update users/new view
updated sessions/new.html.erb
updated layouts/application.html.erb
Edited Gemfile, db.yml to go from sqlite to mysql, also edited User and Session models/controllers and finally ran db:migration