[Bugs] #3715 Implode UNSP: Port to Gtk3

[Sugar Labs Bugs]

#3715: Port to Gtk3
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    Reporter:  humitos                    |          Owner:  humitos                    
        Type:  task                       |         Status:  new                        
    Priority:  Unspecified by Maintainer  |      Milestone:  Unspecified by Release Team
   Component:  Implode                    |        Version:  Unspecified                
    Severity:  Unspecified                |       Keywords:  gtk3                       
Distribution:  Unspecified                |   Status_field:  Unconfirmed                
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Comment(by humitos):

 Gonzalo, I tested your patch and it worked ok.

 There is another issue maybe related with what I did, and it's that the
 cursor (on help screen) doesn't update the background when it pass over
 the board and some weird thing happens there.

 Why do you think that this patch is not perfect? :D It doesn't look so
 bad.

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Ticket URL: <http://bugs.sugarlabs.org/ticket/3715#comment:4>
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