[Pidgin] #5852: add antilose respond feature

[Pidgin]

#5852: add antilose respond feature
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 Reporter:  axet          |       Type:  enhancement
   Status:  new           |   Priority:  minor      
Component:  pidgin (gtk)  |    Version:  2.4.2      
 Keywords:                |    Pending:  0          
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 Recently when you in conversation, you close chat window right after new
 message arrived. To avoid lose that message i suggest disable "close"
 window button for 1 second. Also disable esc key with flash window.

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Ticket URL: <http://developer.pidgin.im/ticket/5852>
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