added basic type-checking to user input validation in saveCourse() controller action. refs #3202
added basic type-checking to user input validation in saveCourse() controller action. refs #3202

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