Make 'delete' command kill the unit instead of destroying it.
Make projectiles vanish after a timeout.
Fix projectile landing positions with low framerates.
This was SVN commit r7837.
Giant merge from
http://svn.wildfiregames.com/hg-source/file/5fb522019d5e
Infrastructure is largely complete, gameplay is largely missing
Disabled by default; use command-line flag "-sim2"
(Second attempt at commit...)
This was SVN commit r7259.