Adds BSD sysdep.
Adds support for MAKE variable, overriding make command in our build
scripts.
Fixes more files not ending with newline.
This was SVN commit r10994.
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.