0.003   2018-08-23 (PERLANCAR)

        - Add schema: isbn (which accepts ISBN 10 or ISBN 13).

        - [test] Add some tests.


0.002   2018-08-23 (PERLANCAR)

	- Coerce rule str_to_isbn10 can now convert from ISBN 13, much like
	  str_to_isbn13 rule which can convert from ISBN 10.


0.001   2018-08-23 (PERLANCAR)

        - First release.