title: Using Jinja2, is it possible to disable a tag and/or filter?
body: <p>I have templates that are saved in a database (my clients will create them). I don't want my clients to be able to extend their templates (I know, I know, that's srsly evil). I do want them to be able to include snippets, but not extend templates. How can I disable or remove the <code>{% extends %}</code> tag, and also how can I remove filters, if I later choose to do that too?</p>