fix for #33: implement support for data-native
fix for #33: implement support for data-native

chemerisuk/better-dateinput-polyfill,gergderkson/better-dateinput-polyfill,hakatashi/better-dateinput-polyfill,shankiesan/better-dateinput-polyfill,gergderkson/better-dateinput-polyfill,hakatashi/better-dateinput-polyfill,shankiesan/better-dateinput-polyfill,chemerisuk/better-dateinput-polyfill