Updated travis.yml

phpunit.xml.dist instead of phpunit.xml to make phpunit pass

.travis.yml

@@ -26,9 +26,9 @@ before_script:
   - composer install --prefer-source --no-interaction
 
 script:
-  - phpunit -c phpunit.xml --coverage-clover=coverage.clover
+  - phpunit -c phpunit.xml.dist --coverage-clover=coverage.clover
   - wget https://scrutinizer-ci.com/ocular.phar
   - php ocular.phar code-coverage:upload --format=php-clover coverage.clover
 
 notifications:
-    email: false
+    email: false