New board UI that supports zoom and pan


Feedback from norwegian WP7 user: "The GUI is disfunctional designed. More space should be used for the board."
Since the board is square and the screen is rectangular, there is no more space to be used by the board unless a more advanced UI control is used to draw the board dynamically. This control can then support zooming and panning. The control itself can then be rectangular even if the board is square to be able to view a larger part of the board vertically than horizontally.
This probably leads to the need of a miniature view of the board in addition to the main board control to be able to see what's outside the area that is currently zoomed in at.