v0.4.0 (#2)
Pre-release
Pre-release
* add support for json marshal and unmarshal to Zone and RRSet * add error return value to NewRR, NewRRSet,NewNameNode, GetNameNodeOrCreate, GetRRSetOrCreate * add functions SetRdata, GetRDATASlice, ConvertStringToType, ConvertStringToClass, ConvertTypeToString, ConvertClassToString * remove methof SetNameNode and RemoveNameNode from NameNodeInterface. * add SetNameNode and NameNodeInterface functions/