I appreciate the tutorial. I had hoped that the article applied the "Learn-X-The-Hardway" approach...which appears has disappeared from the internet with the acquisition of Gitorious by Gitlab, but is multiply forked on Github:<p><a href="https://github.com/search?utf8=%E2%9C%93&q=learn+x+the+hard+way" rel="nofollow">https://github.com/search?utf8=%E2%9C%93&q=learn+x+the+hard+...</a>