OWLCD: fix set backlight on/off

git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@6311 2b470e98-0d58-463d-a4d8-8e2adae1ed80
add lock as level to winmatic

git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@6312 2b470e98-0d58-463d-a4d8-8e2adae1ed80
added plz support for public stations


git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@6313 2b470e98-0d58-463d-a4d8-8e2adae1ed80