More autoloading and key bindings; nicer highlight face for rxt-explain
Toggle elisp strings / rx syntax
Fontify regexps while parsing (Elisp only so far)
Convert to use prefixed cl-lib everywhere
Use ERT for the tests
Add tests adapted from PCRE test suite
Big refactoring
Position source overlays correctly in explain buffer
whitespace cleanup
More keys & better escape display in rxt-help-mode
Better font-locking of Emacs syntax-classes and character categories