[sugar] frame redesign

[Tomeu Vizoso]

Hi Marco,

have started moving the items in the frame around as Eben defined.

Can you give it a look and tell me what you think?

http://dev.laptop.org/git?p=users/tomeu/sugar;a=summary

First commit is "ClipboardBox to ClipboardTray. Make it a VTray
instead of hippo.CanvasBox.".

Thanks,

Tomeu