Merge remote-tracking branch 'origin/master'

* origin/master:
  Update README.md
  Update phpunit/phpunit requirement from ~6.0 to ~6.0 || ~7.0
  Update .travis.yml
  Update README.md

.travis.yml

@@ -22,6 +22,10 @@ matrix:
       env: extension='true'
     - php: 7.2
       env: extension='false'
+    - php: 7.3
+      env: extension='true'
+    - php: 7.3
+      env: extension='false'
 
 before_script:
   - php --version

README.md

@@ -1,15 +1,11 @@
 [![Build Status](https://travis-ci.org/voku/email-check.svg)](https://travis-ci.org/voku/email-check)
 [![codecov.io](http://codecov.io/github/voku/email-check/coverage.svg?branch=master)](http://codecov.io/github/voku/email-check?branch=master)
-[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/voku/email-check/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/voku/email-check/?branch=master)
-[![Codacy Badge](https://www.codacy.com/project/badge/512a3dc264b745b18baa1b238470b1d0)](https://www.codacy.com/app/voku/email-check)
-[![SensioLabsInsight](https://insight.sensiolabs.com/projects/a9eca36c-3410-4291-958d-a18e7d852109/mini.png)](https://insight.sensiolabs.com/projects/a9eca36c-3410-4291-958d-a18e7d852109)
+[![Codacy Badge](https://api.codacy.com/project/badge/Grade/512a3dc264b745b18baa1b238470b1d0)](https://www.codacy.com/app/voku/email-check)
 [![Latest Stable Version](https://poser.pugx.org/voku/email-check/v/stable)](https://packagist.org/packages/voku/email-check) 
 [![Total Downloads](https://poser.pugx.org/voku/email-check/downloads)](https://packagist.org/packages/voku/email-check) 
-[![Latest Unstable Version](https://poser.pugx.org/voku/email-check/v/unstable)](https://packagist.org/packages/voku/email-check) 
-[![PHP 7 ready](http://php7ready.timesplinter.ch/voku/email-check/badge.svg)](https://travis-ci.org/voku/email-check)
 [![License](https://poser.pugx.org/voku/email-check/license)](https://packagist.org/packages/voku/email-check)
 
-# E-Mail Address Validator for PHP
+# :envelope: E-Mail Address Validator for PHP
 
 ## Warning
 

composer.json

@@ -24,7 +24,7 @@
     "symfony/polyfill-intl-idn": "~1.10"
   },
   "require-dev": {
-    "phpunit/phpunit": "~6.0",
+    "phpunit/phpunit": "~6.0 || ~7.0",
     "fzaninotto/faker": "~1.7"
   },
   "suggest": {