BUGFIX Fixed escaping in ForumHolder_Controller->search() (see #4246)
BUGFIX Fixed escaping in ForumHolder_Controller->search() (see #4246)

gordonbanderson/silverstripe-forum,Olliepop/silverstripe-forum,camfindlay/silverstripe-forum,camfindlay/silverstripe-forum,gordonbanderson/silverstripe-forum,Olliepop/silverstripe-forum,mandrew/silverstripe-forum,mandrew/silverstripe-forum