fix pyZeroconf bug where getServiceInfo returns None.
This allows the discovery window to work with targets using Avahi to advertise their services.
(patch obtained from <http://sourceforge.net/tracker/?func=detail&aid=1600775&group_id=100909&atid=628622>)

beremiz (2009.0-%DATEVERSION%) unstable; urgency=low

  * Initial release (Closes: #nnnn)  <nnnn is the bug number of your ITP>

 -- lolitech <gregory.trelat@lolitech.fr>  Thu, 29 Nov 2007 14:55:13 +0100