GitLab

Fixed compiler error in iterator_base friend forward declaration in node on clang (and I hope MSVC), plus warnings on clang

Switched the utf bom checking to putback in the stream (instead of keeping a secondary buffer), which fixes a bug when there's only one ascii character

Fixed new API node key/value insertion in NodeBuilder (it was using the wrong condition on when it had added a key already)

Major switch from Value -> Node. The library compiles with the new API, but tests are still oldies, and don't compile

Updated the node/value classes with the new iterators, they compile until we try to instantiate anything

Made the 'data' member optional in node_ref - it's only created on-demand, so we don't waste extra memory every time we do Value tmp = v;