A few changes for the sound nameing/themeing specs

[Bastien Nocera]

On Fri, 2008-07-25 at 16:25 +0200, Lennart Poettering wrote:
> Heya!
> 
> I've made a few changes to the sound theme/naming specs based on requests
> from Bastien:
> 
> - Document the __custom theme that is used by Bastien's new g-s-p for
>   dynamically replacing/disabling sounds in inherited themes.
> 
> - Introduce that we check for .disabled pseudo-sounds to allow
>   disabling sounds a theme inherited from a parent theme.
<snip>
> The new .disable logic is already implemented in libcanberra in git.

Is that ".disabled" or ".disable"?

Looks good otherwise.