[HUBZERO][#4526][PLG_COURSES_OUTLINE] hide trash bin if nothing's there
[HUBZERO][#4526][PLG_COURSES_OUTLINE] hide trash bin if nothing's there

zweidner/hubzero-cms,zooley/hubzero-cms,zooley/hubzero-cms,zooley/hubzero-cms,anthonyfuentes/hubzero-cms,zooley/hubzero-cms,anthonyfuentes/hubzero-cms,anthonyfuentes/hubzero-cms,zweidner/hubzero-cms,zweidner/hubzero-cms,zweidner/hubzero-cms,anthonyfuentes/hubzero-cms