#2713 NORM Trial-3: add paging arrows to the activities frame

[Zarro Boogs per Child]

#2713: add paging arrows to the activities frame
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 Reporter:  tomeu   |       Owner:  edsiper
     Type:  defect  |      Status:  new    
 Priority:  normal  |   Milestone:  Trial-3
Component:  sugar   |     Version:         
 Keywords:          |    Verified:  0      
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 When the frame is full, one arrow should appear on each end, so hovering
 over them will scroll the activities box.

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Ticket URL: <https://dev.laptop.org/ticket/2713>
One Laptop Per Child <http://laptop.org/>