updated serializer's unit tests
updated serializer's unit tests

seem-sky/qjson,seem-sky/qjson,qlands/qjson,flavio/qjson,drizt/qjson,coolshou/qjson,gentlefn/qjson,gentlefn/qjson,cbranch/qjson-qmakefriendly,coolshou/qjson,qlands/qjson,flavio/qjson,drizt/qjson,cbranch/qjson-qmakefriendly