Ensured Unix line endings. changed sort_by's
Added shadow to button
Change 'total' to 'count' and extended a delay
Re-factored instruction display.

Added grid for aligning things.
Moved fan left right a bit to centre it.
Card::draw takes a hash of options now.
Added MARGIN to stop wrong use of CARD_GAP
Use Hand.draw( options )
Use Card.draw( options ) and MARGIN
Turn card can be done by CPU now.