Title: Check_MK is now warning the user about deprecated but configured checkgroup parameters
Level: 1
Component: core
Compatible: compat
Version: 1.2.8b1
Date: 1447836914
Class: fix

These messages help during migration from 1.2.6 to 1.2.8 when the check groups of checks
have been changed. The message is a hint for the user to check the deprecated rulesets
and migrate the rules to the new ones.
