moved GatewayFilter out of Filter class to fix https://github.com/rubycas/rubycas-client-rails/issues/4
moved GatewayFilter out of Filter class to fix https://github.com/rubycas/rubycas-client-rails/issues/4

rubycas/rubycas-client-rails,NCSAAthleticRecruiting/rubycas-client-rails,amco/rubycas-client-rails