Return void on DatagridInterface::addFilter
Return void on DatagridInterface::addFilter

osavchenko/SonataAdminBundle,greg0ire/SonataAdminBundle,greg0ire/SonataAdminBundle,osavchenko/SonataAdminBundle,osavchenko/SonataAdminBundle,greg0ire/SonataAdminBundle,sonata-project/SonataAdminBundle,osavchenko/SonataAdminBundle,osavchenko/SonataAdminBundle,greg0ire/SonataAdminBundle,sonata-project/SonataAdminBundle