Restucturing admin dashboard
update city form and tidy up views
highlight active path in admin
adds fork me ribbon
prepend @ on twitter field
so that people don't add it on their own
Shrink cat image for London profile
make admin tables responsive
 by collapsing elements
Merge pull request #97 from railsgirlslondon/admin-dashboard

Admin dashboard
Merge pull request #99 from railsgirlslondon/add-fork-me-image

adds fork me ribbon
Merge pull request #103 from railsgirlslondon/update_registration_twitter_field

prepend @ on twitter field
remove redundant registration initialisation
use the event registrations association
event knows whether it can accept registrations

Adds #accepting_registrations? onto Event, moving logic from the
controller into the model. Using rails date helpers to determine if the
registration end date is in the past or not.

The logic should remain the same, which means that you cannot register
on the registration end date, not sure if this is correct.

The test just uses plain rspec as I just don't get/like the
Given/When/Then stuff.
Merge pull request #106 from railsgirlslondon/refactor-registrations-controller

Refactor registrations controller