[ENH] Make root forum thread contributors and ID available in search index 


git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@52533 b456876b-0849-0410-b77d-98878d47e9d5
[NEW] Add useful display of group member count in smarty


git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@52534 b456876b-0849-0410-b77d-98878d47e9d5