[Pidgin] #8776: load blist.xml error when group aias include " "

[Pidgin]

#8776: load blist.xml error when group aias include ""
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 Reporter:  gxd305  |           Owner:  csyfek
     Type:  defect  |          Status:  new   
Component:  QQ      |         Version:  2.5.5 
 Keywords:          |   Launchpad_bug:        
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 My QQ groups has a group named "\244C++论坛", so there is an error when
 loading blist.xml.

 <alias>&#x1;\244C++论坛</alias>

 Could the alias use CDATA block to be protected or other method to filter
 these invalid string.

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Ticket URL: <http://developer.pidgin.im/ticket/8776>
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