2018-05-29: initial release
2020-06-07: rewrite check function, added wato
2020-06-08: changed snm-scan function
2021-08-24: rewritten for CMK 2.0
2022-11-30: WATO: fixed CheckParameterRulespecWithoutItem (from CheckParameterRulespecWithItem)
2023-05-29: moved gui files fo ~/local/lib/check_mk/gui/plugins/...