12-22 Update

Turns now end automatically after the player moves both units.  I've had to do a lot of tweaking in each of the existing chapters to get it working correctly, and there are still some issues, but IT WORKS!

That said, I haven't put any time into new chapters, so... This isn't really much of an update. I did make a few graphical tweaks here and there and replaced some of the music at the beginning.  Speaking of music, there's an annoying sound bug I still can't seem to solve.