Support ALL Selectors Implemented by CSQuery. Fixes #34

Hey @martinnormark - as discussed in recent emails. Finally got some time to sit down and write some code.

Figured it would be much easier to build up an exclusion list since CSQuery supports to much.
Also added a test to prove the jQuery selectors work as well.

Let me know what you think and/or if you want any tweaks made.

Hope all is well! :smile: