Class Json::FastWriter: Use StreamWriterBuilder.
Class Json::Reader: Use CharReader and CharReaderBuilder.
Global Json::Reader::getFormatedErrorMessages () const: Use getFormattedErrorMessages() instead (typo fix).
Class Json::StyledStreamWriter: Use StreamWriterBuilder.
Class Json::StyledWriter: Use StreamWriterBuilder.
Global Json::Value::setComment (const char *comment, CommentPlacement placement): Always pass len.
Global Json::ValueIteratorBase::memberName () const: This cannot be used for UTF-8 strings, since there can be embedded nulls.
Class Json::Writer: Use StreamWriter. (And really, this is an implementation detail.)