[FIX] trackers: Fix notices

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48961 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] trackers: Chosen adds another UL to the object selector container, so just use the first one for the items list


git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48962 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] Avoid displaying stack trace with password for tiki-check.php, when an invalid db password is entered.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48963 b456876b-0849-0410-b77d-98878d47e9d5