Finished exercise 1, started on 2
fixed a bug in 2.2 (angle calc and radius calc)
exercise 2.4 (finished: convex polygon function)
some hell of refactoring in chapter 2 (2.5 and 2.4)
tydying up
cleaning up.. (made module Shape instead of Ch1)
added some comments to ch2
added SOE library, and finished ch3
added .gitignore
deleted all Book code from ch2.hs
simplified all files according to book content
Started on exercises 5
finished ch5.hs
finished ch7.hs
finished ch7.hs
finished all but 8.12 and 8.13 in ch8
finished ch9
Merge branch 'master' of https://github.com/patriques82/Solutions-to-The-Haskell-School-of-Expression