[Merge] lp:~timchen119/gnome-control-center/gnome-control-center.precise.lp1244065 into lp:ubuntu/precise-proposed/gnome-control-center

[Sebastien Bacher]

oh, also having a changelog entry would be useful
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https://code.launchpad.net/~timchen119/gnome-control-center/gnome-control-center.precise.lp1244065/+merge/192472
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