Support for Intl.DateTimeFormat added.

Support for Intl.DateTimeFormat https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat was added.

1.0.6: Merge pull request #30 from yyankowski/fix-leap-year-add-subtract

Bugfixes for leap year manipulations. The operations results made consistent with what you'd expect from JavaScript Date.

v1.0.5: Merge pull request #22 from yyankowski/update_package_version

version updated

Fixes for leap year manipulations - addition and subtraction of years.

Merge pull request #18 from yyankowski/fix-leap-year-subtraction-and-…

…addition-for-years

fixes for leap year actions on year

v1.0.3

1.0.3