Updates to landscape mode and other fixes!

Fixed in this release:

• This release includes the ability to go landscape without destroying the board.
• You can also "scroll" the board in landscape mode, if your screen is too small to see all of it.
• You can now go to Android home screen and open back up with your game still being present. (Not destroyed when minimized.)

Single and Dual Player Modes!

Single and dual player modes work!