Release 1.4
Add support for the quote char ' in symbols (e.g. 'abc becomes MPEdnSymbol with name 'abc). This is not in the EDN spec, and doesn't make any sense outside of an evaluated environment and yet:
user> (pr-str (clojure.edn/read-string "'a"))
"'a"
Since Clojure can generate EDN like this, we now also accept it (but do not generate it).