Audit merged PR and build real todo list

[allaryin]

With minimal tweaks, @Trinsdar's PR (#4) compiled and runs, so I accepted it to keep the momentum going.

Now I need to go through more thoroughly and see what precisely it contained and what else we need to do ;)

[Trinsdar]

by the way could you perhaps give me some sort of explanation of the math used in the fir tree generation?

[allaryin]

So the fir tree generator that I threw in there is pretty garbage (it's the autumn generator with the numbers turned up to fir scale), hence the screenshot. When I get a chance, I'm going to rewrite the original generator to something better and less horrible to read.

As far as the math involved, it's nothing fancy. We pick a height for the tree within a certain bounds and then assume that most of that will have leaves. Classic EBXL fir leaves are just a simple repeating pattern that results in a sort of stacked cone look.