`settings-set-${section}-${name}` is now broadcast when a setting's
value is actually changed, while `settings-${section}-${name}` is
broadcast then or if the setting is hidden, i.e. by its parent (i.e.
some "enabled" bool). This allows chains of dependencies to be resolved
visually. When a setting is hidden, the value sent is "false", and when
a setting is shown again, the actual value of it is sent.
Harvey Tindall
32161139b2