Merge pull request #418 from leansoft/master

Bugfix for facebook scope delimter

Author: elliotchance

src/OAuth/OAuth2/Service/Facebook.php

@@ -197,4 +197,11 @@ public function getDialogUri($dialogPath, array $parameters)
         $query = http_build_query($parameters);
         return new Uri($baseUrl . '?' . $query);
     }
+    /**
+     * {@inheritdoc}
+     */
+    protected function getScopesDelimiter()
+    {
+        return ',';
+    }
 }