display event dates, not title
add colour tone for body colour
add sponsor prospectus
use .row, fix alignment
test CitiesController 'sponsor' route
Merge pull request #115 from railsgirlslondon/add-sponsor-prospectous

Add sponsor prospectous
Add test for RegistrationsController#new
Tidy up the registrations controller spec
raise routing error if city doesn't exist
add test for city show route,
extract common code and change sponsor route
resolve conflict