make inevitable work for events issue #155
add map_url to sponsor and make address_line_2
not mandatory
fix bug-attending used instead of selection_state
display invitations on event page
send notification to organisers on RSVP
send confirmation to attendee
change wording 'Comment' instead of 'Reason'
show map on event page
maintenance, remove registration accepted/rejected
and weeklies emails
Email layout
rename template
remove redundant tests
use url instead of path so its evaluated correctly
london image
tweak confirmation email
Merge branch 'use-invitations-for-events' of github.com:railsgirlslondon/railsgirls-london into use-invitations-for-events
fix link to workshop page
enable event mailer tests
Merge pull request #179 from railsgirlslondon/use-invitations-for-events

Make invitable work with events
Merge branch 'master' of github.com:railsgirlslondon/railsgirls-london into staging