[FIX] Possible fatal error with multiple draw plugin per page

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48519 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] Show last line of search indexer log for debugging purposes

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48520 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] Fatal error in user indexing where user tracker item exists

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48521 b456876b-0849-0410-b77d-98878d47e9d5
[DOC] more tips in remarks box

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48522 b456876b-0849-0410-b77d-98878d47e9d5