* 2025-01-08 4.1.1
  add checks for power and fuse (also perfdata) of cmc III
* 2024-10-09 4.1
  check status of access variables (not only messages) for open doors, add perfdata
* 2024-10-09 4.0.0.1
  no perfdata for n/a leakage sensors
* 2024-06-10 4.0
  restructure for epn
  show leakage as perfdata
  fix a lot of undef-errors in Rittal CMC III (multitemperature devices)
* 2022-07-29 3.2
  add CAREL-UG40CDZ-MIB
* 2017-03-20 3.1.1
  cmcIII has wrong parent class
* 2016-02-08 3.1
  add GLPlugin submodule
* 2015-07-09 3.0
  use of external GLPlugin is optional
  output cmc tc III temperature/humidity/voltage perfdata
  raise snmp buffer for cmc iii
* 2015-04-23 2.2.1.1
  update GLPlugin[SNMP]
* 2015-01-26 2.2.1
  update GLPlugin[SNMP]
* 2.2 - 2015-01-09
  finish cmc-tc III
* 2.1.1 - 2015-01-08
  fix cmctciii
* 2.1.0 - 2015-01-06
  Plugin nor uses GLPlugin.pm, rewrite CMCTCII
* 2.0.0.1 - 2013-08-21
  added bugfixes cmcIII (Thanks Philipp Deneu)
* 2.0.0.0.0 - 2013
  add cmc III
* 2010-01-25 1.1.1
  added more sensor type oids (Thanks Simmerl)
* 2009-12-15 1.1
  rewrote the plugin so it can be easily enhanced in the future
  renamed it to check_rittal_health
* 2008-12-09 1.0
  First public release
