v4.0
Fixes and new features in Version 4.0:
* Fixed problem with digit separators in the Select Game dialog.
* Fixed a smart-dragging bug in Spider that could occur after a deal from the stock.
* Fixed Restart game bug where the reset of the cards was incorrect for FreeCell-type games when restored from a saved state.
* Now uses standard C++ library Mersenne Twister 19937 generator (64 bit) for shuffles.
* All artwork now supports Retina displays with high-resolution images.
* Supports new toolbar/title bar arrangements.
* Supports new dark mode.
