specs: introducing wait_for_ajax helper, which is basically a sleep command with a value determined by benchmark.
specs: increasing the default ajax wait time for Capybara.

See: https://github.com/jnicklas/capybara\#asynchronous-javascript-ajax-and-friends
specs: introducing press_enter(field_name) method after poltergeist update to 1.5.0.
fixing corporate vita integration test.
specs: trying to fix the ability-admins-for-nil-class red spec.