[Pidgin] #519: Allow a filtering function in the buddy autocompletion

[Pidgin]

#519: Allow a filtering function in the buddy autocompletion
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  Reporter:  lmfe          |       Owner:  seanegan
      Type:  patch         |      Status:  assigned
  Priority:  minor         |   Milestone:  2.1.0   
 Component:  pidgin (gtk)  |     Version:  2.0     
Resolution:                |    Keywords:          
   Pending:  0             |  
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Comment (by rlaager):

 It would be better to break backwards compatibility, but doing that forces
 us to a 3.0.0 release. It would've been fine to do during the 2.0.0
 development cycle, but now it's too late. You have to add a function and
 we can drop the old one for 3.0.0 later.

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Ticket URL: <http://developer.pidgin.im/ticket/519#comment:12>
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