I glanced through the parser rules, and it looks like you guys have implemented some kind of named filters in addition to the per-tag-per-attribute rule set fro

I glanced through the parser rules, and it looks like you guys have implemented some kind of named filters in addition to the per-tag-per-attribute rule set from wysihtml5. Having just spent too much time fighting wysihtml5's overly opinionated rules trying to allow <a> tags to allow any value for href, changes in this area are of great interest to me. Could you touch on what changed in the parser rules?