toggle 4 dimmer, CO2 sensor implementation

git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2439 2b470e98-0d58-463d-a4d8-8e2adae1ed80
added model attribute to OWDevice

git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2440 2b470e98-0d58-463d-a4d8-8e2adae1ed80
readingFnAttributes added (due to set)


git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2441 2b470e98-0d58-463d-a4d8-8e2adae1ed80
Avoid undefined messages


git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2442 2b470e98-0d58-463d-a4d8-8e2adae1ed80
new sensors (DS1822,DS1825,DS1904,DS1920,DS1990A,DS2401,DS2415,DS2417,DS2436,DS2438,DS2450) added


git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2443 2b470e98-0d58-463d-a4d8-8e2adae1ed80


git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2444 2b470e98-0d58-463d-a4d8-8e2adae1ed80