make team code unique
new api spec
added spec for attendance-related resources
add django-rest-framework
added rest framework settings (default)
minor changes to model fields
basic serializers for accounts models
basic api working under api/, but some things are broken due to HyperlinkedModelSerializer
changed to normal ModelSerializer for now. api works
api for schedules and events
basic rolls api
leaveslip apis
revert commit a5924b40bc63077b1dd6d93f85c1dbd3e6f9bcca. will revisit later.
api for trainees by house
trainee api urls
all APIs working except locality and hc
we forgot a locality field on trainees... need to add this, but not ready to do migrations yet. needed for traineesbylocality api
trainee hc api working: switched order of url confs
merging new drf API into dev