MAGECLOUD-2896: 2.3.0 - Final Cloud Preparations

Author: billygilbert

composer.json

@@ -2,24 +2,25 @@
     "name": "magento/project-enterprise-edition",
     "description": "eCommerce Platform for Growth (Enterprise Edition)",
     "type": "project",
-    "version": "2.2.6",
+    "version": "2.3.0",
     "license": [
         "OSL-3.0",
         "AFL-3.0"
     ],
     "repositories": {
-        "repo": {
+        "sandbox": {
             "type": "composer",
             "url": "https://repo.magento.com"
         }
     },
     "require": {
-        "magento/magento-cloud-metapackage": ">=2.2.6 <2.2.7"
+        "magento/magento-cloud-metapackage": ">=2.3.0 <2.3.1"
     },
     "autoload": {
         "psr-4": {
             "Magento\\Setup\\": "setup/src/Magento/Setup/",
-            "Magento\\": "app/code/Magento/"
+            "Magento\\": "app/code/Magento/",
+            "Zend\\Mvc\\Controller\\": "setup/src/Zend/Mvc/Controller/"
         },
         "psr-0": {
             "": [