erlang-rfc4627

Code pulled with git from git://github.com/tonyg/erlang-rfc4627 with the last commit being f471b41

These are Current warnings for erlang-rfc4627.

dialyzer -n -q -Wno_improper_lists ebin
rfc4627.erl:153: The call dict:to_list(Dict::tuple()) does not have an opaque term of type dict() as 1st argument