Setting to allow volume above 100%

[Christian Dysthe <cdysthe gmail com>]

Hi,

Ubuntu's Unity now allow having the volume slider on the desktop go all
the way up to above 100% without having to go into the sound settings.
It would really like to see an option like that in Gnome-Shell as well.
Since 100% is only 2/3 up what is possibly to set I often have to go
into sound setting to get it loud enough my laptops and a couple of
desktop systems as well.

-- 
//Christian

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