* 2024-08-08 4.3
  improve and fix Liebert Flexible temperatures, add humidity
* 2024-06-04 4.2.1
  show PowerNet temperatures and humidity sensors
* 2024-05-28 4.2
  fix apc missing battery remaining time
  fix apc missing last diagnostics time
  add EATON ATS2
  add temperatures for Liebert
* 2024-02-20 4.1.1.1
  fix uninitialized-warnings because some liebert devices don't return all oids
* 2024-02-19 4.1.1
  add temperatures for Liebert (or Vertiv or irgendein umgelabelter Schrott, ueber den schon fuenf Hersteller gerutscht sind)
* 2024-02-19 4.1
  reorg UPS components
* 2023-08-29 4.0.0.1
  XUPS alarms are critical up to half a year now
* 2023-08-25 4.0
  bugfix in XUPS-MIB alarms
  rewrite the plugin to make it epn-ready
* 2023-03-14 3.1
  updated LIEBERT-MIBs
* 2023-02-17 3.0.5.1
  disable lgpFlexibleBasicTable (was unused, caused timeouts)
* 2023-01-13 3.0.5
  support eConversion mode for PowerNet based devices (Schneider for example)
* 2022-05-02 3.0.4.1
  bugfix in liebert selftest start time (only the text output was wrong)
* 2022-04-14 3.0.4
  improve initial uptime-handshake
* 2021-12-23 3.0.3
  bugfix in XPPC, get input voltage from UPS-MIB
* 2021-12-06 3.0.2
  bugfix in UPS battery temperature
  update LIEBERT
  update GLPlugin
* 2021-09-28 3.0.1.4
  add diag dump to check selftest time
* 2021-08-10 3.0.1.3
  add more tracing information for Powermib, update GLPlugin
* 2021-04-30 3.0.1.2
  increase the time again, 7 hours
* 2021-04-15 3.0.1.1
  increase recovery time after a selftest to 6 hours (APC Powermib)
* 2021-04-09 3.0.1
  bugfixes in UPS and Liebert-GP (avoid undefined errors)
* 2021-04-07 3.0
  fix the class inheritance, lower thresholds for powernet 4 hours after a selftest
* 2021-03-23 2.10
  add EPPC-MIB
* 2021-03-10 2.9.2.7
  no bulk requests for Socomec Netvision, plugin may hang
* 2021-03-09 2.9.2.6
  updated glplugin, fixes error for apc powernet and capacity during selftest
  more logging output for liebert
* 2021-03-08 2.9.2.5
  bugfix in selftest of liebert
* 2021-02-22 2.9.2.4
  suppress battery temperature for APC Powernet if undefined
* 2021-02-19 2.9.2.3
  ignore very low battery temperatures for ups-mib (cs141 with empty slot)
* 2021-02-15 2.9.2.2
  lower capacity thresholds during selftest for APC Powermib
* 2020-10-05 2.9.2.1
  fig Liebert detection, fix a NaN temperature value in Liebert
* 2020-10-05 2.9.2
  update glplugin
  fix xppc selftests without a test date (tests may not be available at all)
* 2020-09-08 2.9.1
  update glplugin
* 2020-06-16 2.9.0.1
  bugfix in XUPS thresholds
* 2020-05-30 2.9
  add ATS-THREEPHASE-MIB
* 2020-05-19 2.8.3.9
  Powernet-MIB onBattery is ok when running a selftest
* 2019-04-15 2.8.3.8
  suppress battery temperature for UPS-MIB if an invalid number is shown
* 2019-04-15 2.8.3.7
  update GLPlugin
* 2019-11-18 2.8.3.6
  don't use undef XUPS thresholds (Thanks Matthias Gallinger)
* 2019-11-15 2.8.3.5
  exclude unkown temp sensor for RUD101 mgmt cards (Thanks Matthias Gallinger)
* 2019-10-22 2.8.3.4
  fix false positive in UPS-MIB (remainingminutes and x-thresholds)
* 2019-03-18 2.8.3.3
  skip ampty alarms in UPS-MIB
* 2018-12-17 2.8.3.2
  fix a bug in UPS-MIB for AEG Protect 1.100
* 2018-07-25 2.8.3.1
  update glplugin (apc firmware bug)
* 2018-07-05 2.8.3
  merged a lot of pull requests, thanks odenbach
* 2018-07-02 2.8.2.3
  add amb/remote temp/hum to xups
  update glplugin
* 2017-12-06 2.8.2.2
  update glplugin
* 2017-08-02 2.8.2.1
  fix liebert temperature label
* 2017-07-11 2.8.2
  xppc standby mode is ok
  update GLPlugin
* 2017-05-12 2.8.1.1
  update GLPlugin
* 2017-03-25 2.8.1
  finish liebert/ups mixed emerson in dubai
* 2017-03-09 2.8.0.4
  fix variable in non-standalone
  filter ups-mib alarms
* 2017-03-09 2.8.0.3
  remove unnecessary alarm info
* 2017-03-08 2.8.0.2
  fix xups selftest alarm
* 2017-02-02 2.8.0.1
  fix cs-121 output when on battery (Thanks k0ste)
* 2016-11-11 2.8
  add Emerson Liebert
* 2016-09-27 2.7.1.2
  fix generex trimod without mib-2
* 2016-08-12 2.7.1.1
  update GLPlugin/Extraopts
* 2016-06-21 2.7.1
  fix UPS for Generex cs141
* 2016-06-03 2.7.0.2
  update GLPlugin
* 2016-03-30 2.7.0.1
  bugfix in ups-mib batterytemperature
* 2016-02-08 2.7
  add glplugin submodule
* 2016-01-29 2.6.0.1
  minor bugfixes
* 2016-01-29 2.6
  supports dynamic mib loading
* 2016-01-20 2.5.2.7
  bugfix for apc powernet. no battery status means ok
* 2015-07-13 2.5.2.6
  bugfix for apc powernet. noTransfer input ok, if battery 100% full
* 2015-07-08 2.5.2.5
  bugfix in Socomec Netvision detection
* 2015-05-20 2.5.2.4
  bugfix in V4 battery runtime (undef if not on batt.)
* 2015-04-23 2.5.2.3
  update GLPlugin[SNMP]
* 2015-04-23 2.5.2.2
  update GLPlugin[SNMP]
* 2015-01-26 2.5.2.1
  update GLPlugin[SNMP]
* 2014-12-22 2.5.2
  remove Raritan PX2 (was moved to the new plugin check_pdu_health)
* 2014-12-16 2.5.1
  update GLPlugin
* 2014-12-02 2.5
  implement Raritan PX2
* 2014-10-01 2.4.0.13
  update GLPlugin
* 2014-08-22 2.4.0.12
  bugfix in glplugin/uptime because of buggy snmpengineuptime
* 2014-08-21 2.4.0.11
  GLPluginSNMP update/uptime thresholds
* 2014-08-21 2.4.0.10
  GLPluginSNMP update
* 2014-08-20 2.4.0.9
  GLPluginSNMP update
* 2014-08-19 2.4.0.8
  GLPlugin/SNMP update
* 2014-08-14 2.4.0.7
  GLPluginSNMP update
* 2014-08-01 2.4.0.6
  GLPluginSNMP update
  MerlinGerin also asks XUPS alarm table 
* 2014-07-28 2.4.0.5
  GLPlugin update
* 2014-07-28 2.4.0.4
  added more xups alarm descriptions
* 2014-07-03 2.4.0.3
  update GLPlugin
* 2014-06-06 2.4.0.2
  remove deprecated threshold code in add_perfdata
* 2014-06-04 2.4.0.1
  bugfix in xups alert age
  detect merlingerin before xups
* 2014-05-22 2.4
  finished GLPlugin migration
  rearranged the classification checks
  GLPlugin update
* 2014-03-03 2.3.1
  bugfix in XUPS input current
  bugfix in Merlin Gerin input/output numbers
* 2014-02-21 2.3
  add a check for input voltage = 0
* 2014-02-21 2.2
  code cleanup
* 2014-02-19 2.1
  add UPS-MIB
  add XPCC-MIB
* 2014-02-18 2.0.1
  some bugfixes (unimplemented oids and perl undefs)
* 2014-02-14 2.0
  rewrite using GLPlugin
  raise apc battery temperature threshold
* 2014-01-15 1.2.1
  bugfix for apc powernet outputload undef values
  add XUPS MIB for Eaton 
* 2013-12-24 1.2
  add socomec netys and netvision
* 2013-12-16 1.1
  add apc mge galaxy
* 2013-12-11 1.0
  initial release (can Socomec RT 3000VA and generic UPS V4 devices)
