don't display action menu if there are no filters
don't display action menu if there are no filters

OskarStark/SonataAdminBundle,mweimerskirch/SonataAdminBundle,jlamur/SonataAdminBundle,mweimerskirch/SonataAdminBundle,ossinkine/SonataAdminBundle,Romashka/SonataAdminBundle,morfin60/SonataAdminBundle,Romashka/SonataAdminBundle,Armstrong1992/SonataAdminBundle,Romashka/SonataAdminBundle,ejkun/SonataAdminBundle,Romashka/SonataAdminBundle,OskarStark/SonataAdminBundle,sonata-project/SonataAdminBundle,UnDeleteRU/SonataAdminBundle,ARTACK/SonataAdminBundle,UnDeleteRU/SonataAdminBundle,jlamur/SonataAdminBundle,morfin60/SonataAdminBundle,ossinkine/SonataAdminBundle,dmarkowicz/SonataAdminBundle,osavchenko/SonataAdminBundle,Soullivaneuh/SonataAdminBundle,greg0ire/SonataAdminBundle,jlamur/SonataAdminBundle,mweimerskirch/SonataAdminBundle,dmarkowicz/SonataAdminBundle,dmarkowicz/SonataAdminBundle,ossinkine/SonataAdminBundle,OskarStark/SonataAdminBundle,osavchenko/SonataAdminBundle,Soullivaneuh/SonataAdminBundle,ARTACK/SonataAdminBundle,dmarkowicz/SonataAdminBundle,peter-gribanov/SonataAdminBundle,peter-gribanov/SonataAdminBundle,Romashka/SonataAdminBundle,osavchenko/SonataAdminBundle,morfin60/SonataAdminBundle,peter-gribanov/SonataAdminBundle,UnDeleteRU/SonataAdminBundle,sonata-project/SonataAdminBundle,UnDeleteRU/SonataAdminBundle,jordisala1991/SonataAdminBundle,greg0ire/SonataAdminBundle,morfin60/SonataAdminBundle,ejkun/SonataAdminBundle,ejkun/SonataAdminBundle,jordisala1991/SonataAdminBundle,mweimerskirch/SonataAdminBundle,Armstrong1992/SonataAdminBundle,greg0ire/SonataAdminBundle,Soullivaneuh/SonataAdminBundle,ARTACK/SonataAdminBundle,osavchenko/SonataAdminBundle,ejkun/SonataAdminBundle,dmarkowicz/SonataAdminBundle,Soullivaneuh/SonataAdminBundle,jordisala1991/SonataAdminBundle,peter-gribanov/SonataAdminBundle,ossinkine/SonataAdminBundle,UnDeleteRU/SonataAdminBundle,jlamur/SonataAdminBundle,greg0ire/SonataAdminBundle,ejkun/SonataAdminBundle,OskarStark/SonataAdminBundle,morfin60/SonataAdminBundle,ARTACK/SonataAdminBundle,jordisala1991/SonataAdminBundle,osavchenko/SonataAdminBundle,jlamur/SonataAdminBundle