Check_MK Werk 7060: oracle_sessions: show graphs in the cre if no absolute levels are set

ID: 7060 Title: oracle_sessions: show graphs in the cre if no absolute levels are set Component: Checks & agents Level: 1 Class: Bug fix Version: 1.6.0i1 If no absolute levels were given the graphs could not be shown in the raw edition, because the pnp template assumed that the levels are always present.