* 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
