* python/dbus.py:
* python/examples/example-signals.py:
Start implementing some notions of signals. The API
is really terrible, but they sort of work (with the
exception of being able to filter by service, and to
transmit signals *as* a particular service). Need to
figure out how to make messages come from the service
we registered :-(
* python/dbus_bindings.pyx.in:
Removed duplicate message_handler callbacks.
