Better color handling is used when drawing the
board. The configuration parameters
color_board_castling and color_board_enpassant
were added. Appending to compressed files is now
supported. CPU time is nearly zero. Form input
history was added.
Pressing CTRL-e in the file browser can change the
filename expression. CTRL-i copies the current
game to a new one. A toggle for strict castling
was added. Bugs were fixed.