Added ability to edit user information.  Will probably have to add ability to update surgeon info if user is a surgeon and his or her information is updated.
Merge branch 'mchau'

Added drop down menu to surgery#new view so Surgeons references the surgeons in the db.
Merge branch 'mchau'

Created partial for surgeries form. Updated drop down list for surgeons in surgeries#new view to show surgeon's full name. Updated surgery model to validate for surgeon_id instead of surgery_id.
added simplecalendar gem, adjusted surgery contoller model and index view, now surgeries appear by date but must work on view bc they look ugly
Fixed conflicts