* 2016-05-30 2.1
  warninx and criticalx can be regular expressions
* 2016-05-19 2.0.18
  add unitOnOff De. to Stulzmib
* 2016-05-12 2.0.17
  add mitigation-methods
  update CISCO-FIREWALL-MIB
* 2016-05-12 2.0.16
  add BIANCA-BRICK-MIBRES-MIB
  add BINTEC_FILESYS-MIB
  add unhex_octet_string()
* 2016-05-10 2.0.15
  bugfix in discover_suitable_class
* 2016-05-10 2.0.14
  add mib_ids to JUNIPER-IVE and UCD-SNMP Mibs
* 2016-04-19 2.0.13
  allow own handlers for set_timeout_alarm
* 2016-04-17 2.0.12
  add VRRP-MIB (dhoffend pullrequest #3)
* 2016-04-08 2.0.11
  escape special characters for statefiles under windows
* 2016-04-04 2.0.10
  improve the timeout handler
* 2016-04-04 2.0.9
  DB: add fetchall_array_cached
* 2016-03-29 2.0.8
  SNMP: add CISCO-STACKWISE-MIB
* 2016-03-11 2.0.7
  SNMP: update CISCO-ENHANCED-MEMPOOL-MIB
* 2016-03-08 2.0.6
  DB: allow encoded exec
* 2016-02-26 2.0.5
  add Raritan-EMD-MIB and Stulz-WIB8000-MIB
* 2016-02-22 2.0.3
  add CISCO-STACK-MIB
* 2016-02-17 2.0.2
  update CHECKPOINT-MIB
  replace pipe-symbol in output by !
* 2016-02-15 2.0.1
  bugfix in snmpwalk simulation
  bugfix in valdiff @_
* 2016-01-29 2.0
  add MIBS, dynamical load of snmp modules
* 2016-01-25 1.4.3
  add get_entities
* 2016-01-24 1.4.2.2
  source DB/DBI.pm
* 2016-01-24 1.4.2.1
  add DB/DBI.pm
* 2016-01-24 1.4.2
  Bugfixes in the DB part
* 2016-01-20 1.4.1
  Bugfixes in the DB part
* 2016-01-06 1.4
  fix sql(runtime) in DB.pm, refactor
* 2015-12-24
  fix autoload of DB module
* 2015-11-28 1.3
  add merge_tables, merge_tables_with_code
* 2015-11-29 1.2.2
  add merge_tables
  get_tables can get only specific rows
  finish units
* 2015-11-05 1.2
  remove VERSION from submodules
* 2015-11-05 1.1
  Fix CPAN structure
* 2015-07-08 1.0
  First version, released on an unsuspecting world.
  GLPlugin has long been used in check_*_health-plugins