Log Message:
Update to 0.83.1:

D-Bus Python Bindings 0.83.1 (2010-02-18)
=========================================

Fixes:

* fd.o #21172: avoid some deprecation warnings in Python 2.6

* fd.o #15013: add dbus.lowlevel.MESSAGE_TYPE_SIGNAL etc., for those who care
  about message types at a low level

* When removing signal matches, clean up internal state, avoiding a memory
  leak in long-lived Python processes that connect to signals from arbitrarily
  many object paths (fd.o #17551, thanks to Marco Pesenti Gritti)

* When setting the sender of a message, allow it to be org.freedesktop.DBus
  so you can implement a D-Bus daemon in pure Python (patch from Huang Peng)