Showing applied tags and applicable tags on the appointment template

Tag and Untag appointments
Getting delete working.
Moving the tags view into the main appointment controller.
Remove creating of model in the route, already done in controller on
submit
Fire observers on model.tags change.
Merge branch 'appointment-tags' of github.com:CrazyHorseHQ/smart_client into appointment-tags
Display tags on first view.
Merge pull request #20 from CrazyHorseHQ/appointment-tags

Appointment tags