Say LALR(1), not general LALR.
Add support for atomic (0-arg, owned-string) nodes in parser-lalr.
Use atomic nodes where appropriate in parser-lalr.
Modernize rparse to track trunk libstd.
Make rparse a bit more aggressive about filtering json.
Add sexp-printing mode to rparse, make JSON optional, tweak doc to mention it.
Merge pull request #6 from ptgreen/master

Enhancements to LALR parser and rparse, applied after cmr's not-yet-landed work.