Dark theme Simpletron spec

I was shanghaid into leaving my workstation to an internet deadzone, so I took the time to rewrite the table formatted version from flylib to a sane div formatted page. Strictly speaking, this commit could be pretty inconvenient if Dietel (Pearson) Decides to invoke their copyright & demand I stop infringing. Oh well. In that case I'll probably branch from the previous commit and replay all the sinning history by hand with bad dates. I hope that never happens.n)