Add scripted HFSM system.
Add very basic animal AI.
Support script-only message types.
Add shift+D hotkey to toggle dev command panel.
This was SVN commit r7763.
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.