fixes logout toggle
changes font to Roboto
users are subjects
changes typo
uses authorizations
adds basic support for schedules
massively adds support to create schedule and so forth
allows list action for schedules to users
fixes abilities
cancan expects a hash
hides subject name for my schedules
allows markdown in schedule note
adds Drill#show and fixes Problem with Tags ID
makes footer stick to bottom of page
deny guests access to drills
adds ability to duplicate schedule
fixes half refactoring