[Pidgin] #4555: add delete log option to chat window

[Pidgin]

#4555: add delete log option to chat window
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Reporter:  wizangzing   |       Owner:  lschiere         
    Type:  enhancement  |      Status:  new              
Priority:  minor        |   Component:  unclassified     
 Version:  2.3.1        |    Keywords:  delete remove log
 Pending:  0            |  
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 Sometimes when a conversation is complete, you realize nothing important
 was said and you don't need a log of the conversation.

 It would be nice to have a control on the chat window that would remove
 the log either a button that removes the log when clicked, or a checkbox
 that defaults to the keep a log setting, that removes the log when you
 close the window.

 This will help reduce clutter in the logs folder.

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Ticket URL: <http://developer.pidgin.im/ticket/4555>
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