Made TextUtil public (and documented it)
Added first adapted version of the block-and-node selection artifacts (from thymeleaf).
Finished adaptation of selector handlers. Added tests and refactored handler structures and interfaces.
Minor fix in FAQ.
Added javadoc for AbstractChainedMarkupHandler and DiscardMarkupHandler.
Made getNext() final in AbstractChainedMarkupHandler
Added check to MinimizeHtmlMarkupHandler so that it can only be used in HTML parsing mode.