some minor rewording of in-code comments
some minor rewording of in-code comments

identification-io/rubycas-client,lsylvester/rubycas-client,angjunwen/rubycas-client,geo767/rubycas-client,desaperados/rubycas-client,CruGlobal/ccc_rubycas_client,angjunwen/rubycas-client,Windermere/rubycas-client,rubycas/rubycas-client