Model answers for longer exercises

[arm61]

In #58, @j-m-dean has raised the question "Are model solutions provided for the longer exercises?".

This issue is to get peoples feeling on that.

My preference would be to give answers but not solutions that are only accessible by clicking a link. My rationale is that in programming there are infinite ways to solve a given problem so I don't want to pigeonhole people with one solution, additionally frequently all you want is to know that you got the right answer.

Thoughts?

[j-m-dean]

I was thinking about this a bit more. I think it is a good idea, but not for v1. There is a lot of content still to make, and this is not necessary. Time is probably better spent on new content, rather than fleshing out existing content.