added docblock to method _recursivelySaveGroupTree()
added docblock to method _recursivelySaveGroupTree()

Trott/ilios,justinchu17/ilios,dartajax/ilios,justinchu17/ilios,ilios/ilios,thecoolestguy/ilios,stopfstedt/ilios,stopfstedt/ilios,thecoolestguy/ilios,justinchu17/ilios,ilios/ilios,dartajax/ilios,Trott/ilios,justinchu17/ilios