[FIX} [fp50053] update the confusing text description in the file galleries edit screen for the 'public' field in the tiki_files_galleries table so that it is clearer that this is a type of 'lock' function


git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@50054 b456876b-0849-0410-b77d-98878d47e9d5