More coding puzzles - turns out the Python Challenge is more addictive than Project Euler!

First proper stab at learning git and github, and got to solve some puzzles at the same time! Must come back and do more of these when I have time ...

First (mainly aborted) stab at using github for central storage of cooking recipes, and git for tracking the inevitable "tweaks". Unfortunately, found that it's not entirely feasible to follow reci…