got rid of /opt/extras sillyness in ubuntu packaging
automatically detect the latest source.changes file generated
handle unknown devices slightly better
support multiple Wireless PIDs for same device model
descriptors updated
don't ping devices known to be offline
fixed handling of protocol version when the device is offline
minor clean-ups and formatting
moved logitech.unifying_receiver package to logitech_receiver
minor descriptors clean-up
version 0.9.1