v2.2-beta.4

+ Added tooltip showing file path when hovering over "open config" button
+ Added tooltips for file paths in more cases:
    "Open config" button in settings window and "open save" button in statistics screen
+ Will now attempt to fix broken or outdated config.txt
+ Added confirmation screen for "end game" button
    Enter + RMB still works but is not required
+ Added support for custom trick sequences
* Grayed out deal indicator when no trick sequence is given
* Tweaked text positioning for some windows
* Refactor: added Tile.rect() to simplify rect(Tile.x, Tile.y, Tile.w, Tile.h)
* Pop-up error messages are now also printed to System.err