added Devise to Gemfile
removed old gems and fixed comments
commented out CAS dependency iin environment.rb
initial Devise configuration
installed devise_case_authenticatable gem
set up cas authentication through devise for users
changed over to Devise authentication before_filter
fixed email config not to crash when table doesn't exist
renamed login column in users table to username
update user.rb with login => username change
commented out current_user method to see if Devise's will work
replace all instances of login with username
fixed jquery-ui js includes (maybe)
added some version numbers to Gemfile
prevented before_filter redirect loop
fixed jquery-ui gem issues
re-fixed spinner
replaced spinner w/ font awesome icon to resolve asset errors, resolves #777
commented out broken JS
updated application_control before filter rules and added general Devise routes