mod_smacks_noerror: Add ability to silence errors if mod_offline is disabled This will also silence "message not delivered" errors if mod_offline is disabled and all clients are offline. This assumes working MAM for all clients (lready assumed by the rest of this module).

<tr>
  <th>What is {x} {op} {y}?</th><td>
    <input name="captcha_challenge" type="hidden" value="{challenge}">
    <input name="captcha_reply" pattern="[0-9]+" required type="number">
  </td></tr>