Docs and Marty and the Moving Around of Code and Tests

Since the last post, I worked on the moving-the-code task. Me, Nabil and Alasdair got on a call to discuss what should go where and I ended up creating a file to complement the file. The other options were moving the functions to or inside the file but outside the Scraper class. After I moved the tests as well, I wrote new tests, increased test coverage and renamed some functions which were previously named in the JavaScript-style CamelCase. I also added and extended doc-strings to some functions which could use some updating and made fixes as asked in Code-Reviews.