Added a `pseudos` object & an `is` method to CSSselect + a lot of small changes
Added a `pseudos` object & an `is` method to CSSselect + a lot of small changes

The pseudos object can be used to assign functions that only get
evaluated at execution (filters get executed at compile time)

The `is` method simply verifies if a query matches an element.

jugglinmike/CSSselect