project.
- Added HACKING for developer notes.
- Updated README to be more of a README.
- Updated TODO list.
- default don't build xatrix and rogue
- rolled back save game changes from 6 days ago, as they
suck. Save games are a complex beast and need someone to
redesign them so that they aren't tied to a particular
build. In the meantime, though, I'm not losing any sleep
over it, there's a note in the README about it, so time to
close this bug. (Closes: #15)