#447 copied announcement views and controller from branch announcements_ui
#477 changed date fields to use jquery datepicker
#447 form update.
#447 #421 to do: restrict announcement end date
#447 #421 removed .titleize
edited date format to match cart and linked to already existing js to control dates
47 removed some unnecessary code
#447 #421 fix database issue
#447 deleted unnecessary migrations
Merge branch '447_announcements' of github.com:YaleSTC/reservations into development
Merge branch 'development' of github.com:YaleSTC/reservations into development