closes MBL-10122
test plan:
- do CRUD operations on the observer_alert_threshold endpoints
/users/<id>/observer_alert_threshold[?student_id=<id>]
and
/users/<id>/observer_alert_threshold/<id>
Change-Id: I2c5c7700adaedd4a2068a61568217219b763339e
Reviewed-on: https://gerrit.instructure.com/149147
Reviewed-by: Matthew Sessions <msessions@instructure.com>
Product-Review: Matthew Sessions <msessions@instructure.com>
QA-Review: Matthew Sessions <msessions@instructure.com>
Tested-by: Jenkins