handle undefined sh.sun/moon
if loglevel debug rollover log file
discard_buffers on error
closing connection on error
improve error handling
sqlite: adding more debug output
change memory log to datetime
visu remove locking
raise exception on error
init prev_change with 0
use utf-8 for smartvisu files
Changes from TCr82
Made login work with FritzOS 5.50
KNX: Echo filter
FritzBox CallerMonitor + py3.2