[PURR][#286][PLG_PROJECTS_FILES] disallow dragging of folders into project space until it can be handled correctly
[PURR][#286][PLG_PROJECTS_FILES] disallow dragging of folders into project space until it can be handled correctly

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