flag objectives as read-only, prevent them from being exposed in API.
flag objectives as read-only, prevent them from being exposed in API.

ilios/ilios,thecoolestguy/ilios,thecoolestguy/ilios,ilios/ilios,stopfstedt/ilios,dartajax/ilios,stopfstedt/ilios,Trott/ilios,Trott/ilios,dartajax/ilios