[HUBZERO][#4489][PLG_USAGE_MAPS] Fixed case where code would try to include non existent file
[HUBZERO][#4489][PLG_USAGE_MAPS] Fixed case where code would try to include non existent file

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