WIP SVG maneuver grid
WIP: Proof of concept
Decloak/barrel roll SVG
Constrained barrel roll placement, sort of
Barrel roll appears to work.
WIP: remove ship
WIP: Turn/maneuver list proof of concept
WIP: more UI crap
Support new rules for large ship barrel rolls.
Hide maneuvers when deciding barrel roll.
Removable turns.
Add some docs.
Add toggleable deploy and asteroid areas.

Grid is toggleable.
Clone/delete ships.
Fix bug where movement HTML wasn't cloning.
Add select none.
Select none button; compile artifacts.
Better show/hide control during barrel roll.
Fix heading weirdness (hopefully without infinite recursion...).
Remove debugging output.