add php7.2 + php7.3 travis builds (#59)

* add php7.2 + php7.3 travis builds

* INTL_IDNA_VARIANT_2003 vs INTL_IDNA_VARIANT_UTS46 thx @krtcom

* remove deprected phpunit config

Author: lifeofguenter

.travis.yml

@@ -2,8 +2,10 @@ language: php
 
 matrix:
   include:
-    - php: 7.1
+    - php: 7.3
+    - php: 7.2
       env: RUN_COVERAGE=1
+    - php: 7.1
     - php: 7.0
     - php: 5.6
     - php: 5.5

phpunit.xml.dist

@@ -7,7 +7,6 @@
          processIsolation="false"
          stopOnError="false"
          stopOnFailure="false"
-         syntaxCheck="true"
          verbose="true"
 >
     <testsuites>

src/AfriCC/EPP/Validator.php

@@ -328,7 +328,7 @@ public static function isEmail($email)
             return false;
         }
 
-        $ascii_email = substr($email, 0, $pos) . '@' . idn_to_ascii(substr($email, $pos + 1), 0, INTL_IDNA_VARIANT_2003);
+        $ascii_email = substr($email, 0, $pos) . '@' . idn_to_ascii(substr($email, $pos + 1), IDNA_DEFAULT, INTL_IDNA_VARIANT_UTS46);
 
         return (bool) filter_var($ascii_email, FILTER_VALIDATE_EMAIL);
     }

tests/EPP/Extension/NICMX/Restore/DomainTest.php

@@ -5,7 +5,7 @@
 use AfriCC\EPP\Extension\NICMX\Restore\Domain;
 use PHPUnit\Framework\TestCase;
 
-class DomainRestoreTest extends TestCase
+class DomainTest extends TestCase
 {
     public function testNicMxRestoreDomainFrame()
     {