add python shared modules
add toFile argument
Add Makefile
minor correction getLogger now using filename
add common modules
remove call self.valid, causes dbus-error when a logscript setting changes
update makefile add files
add checking settings available
changed event callback call
support GetValid and only report valid event changes
Resolve call callback also for invalid properties.
kwhcounters should also relay invalid properties.
disable tracing init dbusitem
move tree introspecting to settingsDevice
only add signal math PropertyChanged when needed
set values to none when adding prop changed
Add dbus-name as parameter in callback properties changed.
set timestamp also when logging to console
Support undefined value dbus.Array([])
Add warning and error traces.
Add exception handler for GetValue and GetText.