Fix bug in time selection directive.
Fix to use modified API.
Fix confirm page links.
Add functionality to allow event update.
Add functionality to save participant availabilities.
Improve logic to update availabilities.
Improve validation. Fix bug in timecontainer.
Fix bug when there are no participants.
Fix functionality to edit availabilities.
Add error display for calendar.
Add validity check for times and submit button.
Merge branch 'design' of github.com:Meet-Up/meetup-frontend into dev
Fix bug in event controller.
Fix modal to close on save.
Fix serialization logic.
Add functionality to modify availabilities.
Improve error check and serialization process.
Fix bug in availability modification.
Fix some production errors.