pager doc fix for setup: removed deprecated bundle and added twig explanation
pager doc fix for setup: removed deprecated bundle and added twig explanation

asev/FilterManagerBundle,martiis/FilterManagerBundle,saimaz/FilterManagerBundle,martiis/FilterManagerBundle,saimaz/FilterManagerBundle,murnieza/FilterManagerBundle,asev/FilterManagerBundle,ongr-io/FilterManagerBundle,murnieza/FilterManagerBundle