34_NUT: removed calculation of values. Use userReadings instead.
        removed autogeneration of attr model and serNo.


git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@6620 2b470e98-0d58-463d-a4d8-8e2adae1ed80
PRESENCE: try to fix flapping active state (Forum #27255)


git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@6621 2b470e98-0d58-463d-a4d8-8e2adae1ed80
fhem.pl: check for write errors in save (Forum #27412)


git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@6622 2b470e98-0d58-463d-a4d8-8e2adae1ed80
fhem.pl: Guard WriteStateFile too (Forum#27412)


git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@6623 2b470e98-0d58-463d-a4d8-8e2adae1ed80