typically only make 2 connections to a single server at a
time <http://ur1.ca/6ih>, so this can parallelize the job.
Defaults to null.
+ssl: Whether to access avatars using HTTPS. Defaults to null, meaning
+ to guess based on site-wide SSL settings.
public
------
(using version numbers as the path) to make sure that all files are
reloaded by caching clients or proxies. Defaults to null,
which means to use the site path + '/theme'.
+ssl: Whether to use SSL for theme elements. Default is null, which means
+ guess based on site SSL settings.
xmpp
----