[Merge] lp:~jbicha/software-properties/use-gi-require_version into lp:software-properties

[Jeremy Bicha]

Because it looked like this might not get approved before UI Freeze, I went ahead and used ubuntu-gnome-default-settings to hide "Additional Drivers" in GNOME. We can then drop that hack when this is merged without breaking the UI Freeze.
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https://code.launchpad.net/~jbicha/software-properties/use-gi-require_version/+merge/304193
Your team Ubuntu Core Development Team is requested to review the proposed merge of lp:~jbicha/software-properties/use-gi-require_version into lp:software-properties.