set default to xml2json for issue #18
set default to xml2json for issue #18

yfjd01/GitDocuments,hay/xml2json,metal-hero/tested_xml2json,haiyangd/xml2json-,KaiyuWang16/xml2json-1,noelpark/xml2json,metal-hero/tested_xml2json,KaiyuWang16/xml2json,metal-hero/tested_xml2json