remove insertion of image file name as alt text in dmImage

git-svn-id: https://farcry.jira.com/svn/FC/trunk@13008 8f7d33b6-1012-0410-9a5a-bb7ecce9c363
hide advanced filtering button on objectadmin when "label" is the only search field

git-svn-id: https://farcry.jira.com/svn/FC/trunk@13009 8f7d33b6-1012-0410-9a5a-bb7ecce9c363