[ENH] Allow lines, and review syntax if it isn't acceptable

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/experimental@50031 b456876b-0849-0410-b77d-98878d47e9d5
[ENH] show nothing when plugin fails, security measure

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/experimental@50032 b456876b-0849-0410-b77d-98878d47e9d5