The rails now end at a shoreline. Four vessels join the roster with an
animated sea (swell pattern, glints, hull bob, bow spray, stern wake),
a flapping Jolly Roger and turning paddle wheel on the same 4-frame
machinery as the locomotive wheels, per-vessel liveries and whistles,
an iceberg finale for -a at sea, the Flying Dutchman for -F, and -d,
which summons a dolphin that dives ahead of the ship on the angle its
art was drawn at. The tug travels diagonally for the same reason.
Also ships the outstanding audit fixes: smoke lingers after the train
exits, narrow-terminal crashes stay on-screen, -t fully overrides -l,
make demo runs the train it advertises, --speed documents its clamp,
CODE_OF_CONDUCT.md exists, LICENSE year range updated.
