Fix test_action_controller_request_proxy to use a pre rack version of ActionPack
Fix test_action_controller_request_proxy to use a pre rack version of ActionPack

galois17/oauth-ruby,guimello/oauth-ruby,ministrycentered/oauth-ruby,gherry/oauth-ruby,mkrisher/oauth-ruby,pelle/oauth,felixbuenemann/oauth-ruby,mrThe/oauth-ruby,JonathonMA/oauth-ruby