Remove (possibly faulty) Ruby 1.9 guard in spec helper
Check for authentications table before creating dev users
Set up database_cleaner in spec_helper
Add jQuery rails-ujs, which was lost in the upgrade
Use capybara/rspec for acceptance testing
Set up mocked OmniAuth login for capybara
Add specs for snippet management, fix attr_accessible
Remove unused SnippetsController#assert_ownership