add session
reroute users.index as homepage
change to form_for and get rid of twitter sign in
add styling
change layout
delete old users model and db info, recreate db
add     I18n_enforce_available_locales = true
fix bcrypt bug
delete user-controller spec
add working user and authentication system
add user sign up
add flash message to sign in
changes to be overwritten in merge
add changes to branch