Date2ordinaldate


 * date to ordinal date
 * ISO-8601
 * test set
 * 2005-01-01 → 2005-001
 * 2005-01-02 → 2005-002
 * 2005-12-31 → 2005-365
 * 2007-01-01 → 2007-001
 * 2007-12-30 → 2007-364
 * 2007-12-31 → 2007-365
 * 2008-01-01 → 2008-001
 * 2008-12-29 → 2008-364
 * 2008-12-31 → 2008-366
 * 2009-01-01 → 2009-001
 * 2009-12-31 → 2009-365
 * 2010-01-03 → 2010-003