SAK-23143 - Cancelling site edit for gateway deletes gateway


git-svn-id: https://source.sakaiproject.org/svn/site/trunk@306912 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-23143 - Clean up new properties on pages and tools


git-svn-id: https://source.sakaiproject.org/svn/site/trunk@306913 66ffb92e-73f9-0310-93c1-f5514f145a0a