Merge pull request #1 from crzcrz/master

Got rid of ever-engineered classes. Simplified the board state.
Merge pull request #2 from crzcrz/master

Realistic board images, hand made from freely available sources.
Draw the new wooden board on iphone.
Add placeholder opponent name.
Draw board ranks and files.
Add iPad rendering.
Remove unsupported orientations.
Use system font (uses Helvetica by default).

Might not be the best idea, as we might want a better looking font there.
Create README with link to current board.