mod_bookmarks2: Fix handling of nick and password elements This form of child retrieval fails when the stanza elements internally don't have an 'xmlns' attribute, which can happen sometimes for some reason, including when they have been constructed via the stanza builder API. When that is the case then the explicit namespace arguemnt does not match the nil value of the internal attribute. Calling `:get_child()` without the namespace argument does the right thing here, with both nil and the parent namespace as valid values for the internal attribute.

---
summary: Serve avatars from HTTP
...

Introduction
============

This module serves avatars from local users who have one set in their
vCard, see XEP-0054 and XEP-0153.

Configuring
===========

Simply load the module.  Avatars are then available at
http://<host>:5280/avatar/<username>

    modules_enabled = {
        ...
        "http_avatar";
    }

Compatibility
=============

  ------- --------------
  trunk   Works
  0.11    Works
  0.10    Should work
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