First pass at simulate.c
persch's perf improvements
Convert tabs to spaces.
Pass relative weights on command line.
Strict parsing, flip output order.
Header.
Bikeshed.
Comment.
More shed.
Add library comment.
Add comment and static decl.
Add usage newline.
Require three args.

Allowing single group by testing.
Add comment.
Keeping y0 double is faster.
Clarify todo.
std=gnu99 for strtok_r
Initial commit
init commit
rm extra crap