Closes #34 composer error.

Updated parseURLViaReadability function to include Accept header

Modified composer.json to lock in 2.1.0 for readability dependency

Fixes missing $html bug in ArticleExtractor.

Updated changelog

Merge branch '2.3-fix'

Reinstates original dom parser. Closes #36.

Added ability to pass in HTML and process via the `processHTML` method. 

Closes #35

Update ArticleExtractor.php

Put debug back to false. Ooops.

Added ability to override/force the reading method.