update library
configure Backbone RR for app
update Student & Attendance to use BB-rel
misc refactoring
port PeriodicRecords & PointLosses to use BB-rel
misc cleanup
fix circular dependency issue
port BehaviorIncidents & Types to BB-rel
cleanup
Merge branch 'master' into bb-relational-refactor
Merge branch 'master' into bb-relational-refactor
Merge branch 'bb-relational-refactor'
temp fix for issue with marking students absent after BB-rel refactor