Update integration tests (#80)

* Use the lastest vesion of the integration tests

* Make sure update script does not update packages that does not require integration tests

* Do not use deperecated functions

Author: Nyholm

composer.json

@@ -28,7 +28,7 @@
     },
     "require-dev": {
         "phpunit/phpunit":         "^4.0 || ^5.1",
-        "cache/integration-tests": "^0.10",
+        "cache/integration-tests": "^0.11",
         "symfony/cache":           "^3.1"
     },
     "autoload":    {