some major changes in fheminfo


git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2559 2b470e98-0d58-463d-a4d8-8e2adae1ed80
added new set command "interval" to OWDevice


git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2560 2b470e98-0d58-463d-a4d8-8e2adae1ed80
ignore model type of dummy devices


git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2561 2b470e98-0d58-463d-a4d8-8e2adae1ed80