Blacklist functionality

Some API improvements

lib/client-helpers.js

@@ -19,7 +19,10 @@ async function getAnonymousConfig(context) {
 async function getAuthenticatedConfig(context) {
     return {
         defaultCustomFormValues: await forms.getDefaultCustomFormValues(),
-        userId: context.user.id,
+        user: {
+            id: context.user.id,
+            namespace: context.user.namespace
+        },
         globalPermissions: shares.getGlobalPermissions(context)
     }
 }