v3.0.0

• Fix issue #8: missing function replaceVat
• Laravel 5.8
• Upgrade to phpunit 7.5.x
• Add php 7.3 to travis-ci
• Add support for arrays with dot notations to all validation methods

  $payload = [
      'data' => [
          [
              'country' => 'DE',
              'zipcode' => 63741
          ],
          [
              'country' => 'AT',
              'zipcode' => 1180
          ]
    ] 
  ];
  
  $validator = Validator::make($payload, [
      'data.*.zipcode' => 'zipcode:data.*.country'
  ]);

• Refactor: fix scrutinizer issues
• Refactor: add (external) fixtures to tests to reduce number of lines
• Refactor: remove unused function params