Final Draft of DSL book on RoughCut

After sorting out the Final Draft for production, I rebuilt the rough-cut, which is now live on the site.

The biggest change with the content of the Final Draft is that I have three new pattern chapters for external DSLs from my colleague Rebecca Parsons: Regex Table Lexer, Recursive Descent Parser, and Parser Combinator. I’ve also reworked the “Hello Antlr” topic into the Parser Generator pattern.