add request specs for static_pages
add helper specs for full_title helper
add more tests for static pages
add user model specs; index user emails for uniqueness validation
update users index
keep track of last login date for users
add counter cache column to count user urls
update user show page for admin review
add sortable table columns for users index
add request specs for user signup
add cucumber features and steps for logging in
add pagination for users index and respective tests
refactor user show and index pages
allow only admins to see relevant user pages; add supporting tests
add model specs and request specs for url
test ajax in url controller spec
convert hide and show to use css classes
add phantomjs and js tests
add coffeescript for banner title animation
add banner ring animation and word loop