[Pidgin] #3420: PurpleChatBuddy improvements

[Pidgin]

#3420: PurpleChatBuddy improvements
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  Reporter:  sadrul     |       Owner:       
      Type:  task       |      Status:  new  
  Priority:  minor      |   Milestone:  3.0.0
 Component:  libpurple  |     Version:  2.2.1
Resolution:             |    Keywords:       
   Pending:  0          |  
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Comment (by sadrul):

 I should note that the IRC and XMPP prpls currently send the proposed
 'username' as 'extra_msg' and the proposed 'display name' as 'username'.

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Ticket URL: <http://developer.pidgin.im/ticket/3420#comment:1>
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