Merge pull request #50 from railsgirlslondon/given_cucumber

Remove cucumber in favor of rspec-given
Added initial form
I suck at styling
Merge branch 'registration_form' of github.com:railsgirlslondon/railsgirls-london into registration_form

* 'registration_form' of github.com:railsgirlslondon/railsgirls-london:
  Added initial form

Conflicts:
	app/controllers/registrations_controller.rb
	app/views/registrations/new.html.haml