Reverted modules back to there previous versions so everything matches pre-require-dev state.

composer.json

@@ -166,7 +166,7 @@
         }
     },
     "require-dev": {
-        "behat/mink": "v1.8.1",
+        "behat/mink": "v1.7.1",
         "behat/mink-goutte-driver": "v1.2.1",
         "drupal/coder": "3.7",
         "drupal/coffee": "1.0-beta2",
@@ -176,7 +176,7 @@
         "drupal/search_kint": "1.0-patch.1",
         "drupal/twig_vardumper": "2.2",
         "drupal/vardumper": "1.5",
-        "hirak/prestissimo": "^0.3.10",
+        "hirak/prestissimo": "0.3.9",
         "jcalderonzumba/gastonjs": "v1.2.0",
         "jcalderonzumba/mink-phantomjs-driver": "0.3.3",
         "kint-php/kint": "^3.3",