Change to use CsQuery instead of Fizzler.

I'm guessing that you aren't going to want to take this pull request, but I am going to offer it just in case. :-)

I changed the library to use CsQuery instead of Fizzler because Fizzler was having trouble parsing my HTML.  From what I have read, CsQuery uses a much more robust HTML parsing library than HtmlAgilityPack.

I also updated the project to use NuGet package restore and not have the binary package files included in the repository.

Let me know what you think.