Use siteconfig_settings for settings access.
Review Request #5694 — Created April 10, 2014 and submitted
We had hacks around the templates for falling back on defaults if
settings were missing from siteconfig. This was missing in some cases,
and resulted in breakages in the case of displaying gravatars (a recent
Djblets now provides
siteconfig_settings, which allows access with
falling back on defaults. This change updates all templates to use it.
Tested each of these conditionals.
Saw that gravatars were working again, without having the setting in