added note explaining that the 'ticket' parameter now always overrides the ticket stored in the session
added note explaining that the 'ticket' parameter now always overrides the ticket stored in the session

git-svn-id: fc1d17544eccfe202ae1d1676884b79d43544425@34 e5935e18-7a1f-0410-a9c8-d10ac5b774bc

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