Added basic admin navbar overlay.
Added beginning of the admin shortcuts.
Basic implementation of modal for keycard checkin.
Renamed to staff shortcuts.
Removed swipe keycard confirmation window as per talks with Kelly.
Work on Checkin Service and refactored the Reserver Service object to be based entirely off of a reservation. Should let it be used for an existing reservation.
Added checkin service.
Added KeycardsController#Checkin and the necessary tests.
Finished up keycard checkin.
Added message for keycard not being found and support for multiple swiping.
Updated Travis so it'll tell me where it's freezing.
Deleted unimportant spec that's freezing Travis.
Merge pull request #96 from osulp/feature/AdminOverlay

Feature/admin overlay