[FIX] comments: canModerate returns false if the feature is off, so check pref first

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/13.x@52054 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] popups: Restore missing popup/popovers, e.g. on tracker item titles

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/13.x@52055 b456876b-0849-0410-b77d-98878d47e9d5