Remove deprecated options from FOSRest

Also add a new alias for rulerz to remove a deprecation.

app/config/config.yml

@@ -112,14 +112,8 @@ fos_rest:
             pdf: true
             epub: true
             mobi: true
-        templating_formats:
-            html: false
-        force_redirects:
-            html: true
         failed_validation: HTTP_BAD_REQUEST
-        default_engine: twig
-    routing_loader:
-        default_format: json
+    routing_loader: false
     format_listener:
         enabled: true
         rules:

app/config/services.yml

@@ -159,6 +159,9 @@ services:
         calls:
             - ["addSubscriber", ["@bd_guzzle_site_authenticator.authenticator_subscriber"]]
 
+    RulerZ\RulerZ:
+        alias: rulerz
+
     Wallabag\CoreBundle\Operator\PHP\Matches:
         tags:
             - { name: rulerz.operator, target: native, operator: matches }