Check_MK Werk 3110: ewon: Various improvements to snmp proxy functionality

ID: 3110 Title: ewon: Various improvements to snmp proxy functionality Component: Checks & Agents Level: 1 Class: Bug Fix Version: 1.2.9i1 Added configurable O2 levels and disabled the crit status when the N2 outlet is open. Also fixed incompatibility with nagios core. Unfortunately these changes make a re-discovery of the device necessary.