Merge pull request #67 from Johannestegner/feature/php-84-composer2

PHP 8.4 and composer v2.

- Fix regex to disallow 000 as suffix number

Remove age property to match updated v3 spec (#27)

Remove travis

Merge pull request #14 from personnummer/feature/return-values-21

Change return values on getAge and format

Test php 7.2