activity configuration UI

[Marco Martin]

On Wednesday 28 March 2012, Marco Martin wrote:
> i still think the best way to still have buttons, have them always visible
> and taking less space is having them in the titlebar, like the ipad and
> the n9 do:
> http://www.silicon.com/i/s4/illo/photos/2010/June/iPad%20test/iPad%20VPN%2
> 0config%20screengrab.PNG
btw, if now one uses the branch

mart/useFullScreenSheet

the confirm/cancel buttons of both the configure and add resources ui are 
embedded in the titlebar, they seem to look nice.

as soon as we can break master again i'll merge so people can test it (for 
both speed differences and difference in look)

Cheers,
Marco Martin