GitLab

Added force_insert for mapping nodes that doesn't check to see if the key exists already (so it could duplicate keys)

Updated new API conversion to handle nan/inf and to throw when the conversion didn't use the entire string (e.g., parsing 1.2 as an integer)

Implemented std::map decode (and fixed bug in the Node iterator - the reference_type should be just a plain value, since it's created on-the-fly)