dont test for php 5.6

Author: marickvantuil

.travis.yml

@@ -1,12 +1,11 @@
 language: php
 
 php:
-  - 5.6
   - 7.0
   - 7.1
 
 sudo: false
 
 install: travis_retry composer install --no-interaction --prefer-source
 
-script: vendor/bin/phpunit --verbose
+script: vendor/bin/phpunit --verbose