- Added auxiliary windows for the history and the external board
- Gave a title to auxiliary windows and remember their position (more or less) and size
- Auxiliary windows do not survive anymore after the main one
- Preferences are now stored in a sensible place
- the multiplayer modes are more or less playable
- the training mode is not playable at all
- the current layout is still experimental
- many dialogs and options are missing
- tested on Linux only
There are still hundreds of things to do...