fixed error messages in fhem log for unknown messages


git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@4329 2b470e98-0d58-463d-a4d8-8e2adae1ed80
- some improvements to compute state active
- some improvements to debug funktionality with verbose in case of disabled attribute

git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@4330 2b470e98-0d58-463d-a4d8-8e2adae1ed80
added support for groups


git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@4331 2b470e98-0d58-463d-a4d8-8e2adae1ed80
added groups command


git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@4332 2b470e98-0d58-463d-a4d8-8e2adae1ed80