[PLG_GROUPS_CITATIONS] Adds ownership checks before publish() & delete(), start generalizing scope out.
[PLG_GROUPS_CITATIONS] Adds ownership checks before publish() & delete(), start generalizing scope out.

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