Sort out how documentation works

[dmptrluke]

It's a little confusing that we keep some docs in the repo as markdown files, and keep some on the wiki. What should we do about this?

[daboross]

If I recall correctly, I think I included the installing-* docs in the repository so that they would be easy to access after cloning the repository, and so we could have different documentation for the different branches.

Feel free to move them to the wiki though, since we only really have one development branch now there isn't really a reason to have the in the repository I guess.

[dmptrluke]

Honestly I kinda like having this stuff in the repo