Fix build.

Author: ademarco

composer.json

@@ -25,18 +25,18 @@
     "drupal/core": "~8",
     "drupal/bootstrap": "~3"
   },
-  "conflict": {
-    "drupal/drupal": "*"
-  },
   "repositories": [
     {
       "type": "composer",
       "url": "https://packages.drupal.org/8"
     }
   ],
-  "extra": {
-    "installer-paths": {
-      "build/core": ["type:drupal-core"]
+    "extra": {
+        "installer-paths": {
+            "build/core": ["type:drupal-core"],
+            "build/modules/contrib/{$name}": ["type:drupal-module"],
+            "build/profiles/contrib/{$name}": ["type:drupal-profile"],
+            "build/themes/contrib/{$name}": ["type:drupal-theme"]
+        }
     }
-  }
 }