[ENH] Add information in search index whether something is an addon group or not


git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@53289 b456876b-0849-0410-b77d-98878d47e9d5
[MOD] Current object when on a pretty tracker page should be considered the tracker item not the wiki page

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@53290 b456876b-0849-0410-b77d-98878d47e9d5