2018-01-15: wato zycel_flash, zyxel_mem 2018-01-16: metric zyxcel_wlc, check zyxel_wlancontrolleraptable, zyxel_capwap 2018-01-17: inventory snmp_zyxel_common, check zyxel_mem, zyxel_cpu, zyxel_flash, zyxel_foreign_aps 2018-01-18: wato zyxel_cpu 2018-01-21: wato zycel_roreign_aps 2021-10-02: rewritten for CMK 2.0 2022-11-30: WATO: fixed CheckParameterRulespecWithoutItem (from CheckParameterRulespecWithItem)