[FIX} 12.x only fix to allow for metadata application/vnd.ms-office being shown by finfo as application/msword for php < 5.5

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@52105 b456876b-0849-0410-b77d-98878d47e9d5