Issue #27: implement CharacterCollection>>encodeAsUTF8intoString in Core24x
Issue #27: implement CharacterCollection>>encodeAsUTF8intoString in Core300
Issue #27: implement CharacterCollection>>encodeAsUTF8intoString in Core31x
Issue #27: add Core322x package...implement CharacterCollection>>encodeAsUTF8intoString in Core322x