Merge branch 'feature/composer-trouble' into develop

composer.json

@@ -17,9 +17,6 @@
   ],
   "minimum-stability": "alpha",
   "prefer-stable": true,
-  "replace": {
-    "drupal/core": "*"
-  },
   "require": {
     "composer/installers": "^1.7",
     "oomphinc/composer-installers-extender": "^1.1",