+2.8: 2024-02-10:
+ Fix for enemy dispersion on torpedo hits.
+ Re-conform to the documentation by removing the .py estension from sst.
+ Fancy-mode coordinates can have the Y as a letter, e,g. "c4" = "3 - 4".
+ Wayback option: you can revert the game to the behavior of past years.
+
+2.7: 2021-09-20::
+ Ubuntu has abolished /usr/bin/python, change shebang to python3.
+
+2.6: 2021-04-16::
+ Fixed a longstanding bug in the chart display.
+ Minor port fixes for recent Python 23 versions.
+ Test suite is TAPified.
+
+2.5: 2019-04-24::