Merge branch '2-bug-caching-von-list-function' into 'master'

Resolve "Bug: Caching von List-Function"

Closes #2

See merge request !5

ext_localconf.php

@@ -13,7 +13,7 @@ call_user_func(
             ],
             // non-cacheable actions
             [
-                'Course' => ''
+                'Course' => 'list'
             ]
         );