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>)
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<includes>
<![CDATA[]]>
</includes>
<variables/>
<globals>
<![CDATA[]]>
</globals>
<initFunction>
<![CDATA[]]>
</initFunction>
<cleanUpFunction>
<![CDATA[]]>
</cleanUpFunction>
<retrieveFunction>
<![CDATA[]]>
</retrieveFunction>
<publishFunction>
<![CDATA[]]>
</publishFunction>
</CFile>