Bug 873972 - Add a setting to draw layers borders
Bug 876055 - Add defaults for the new device storage/automounter settings
Merge pull request #10043 from Rik/layers-draw-borders-873972

Bug 873972 - Add a setting to draw layers borders r=vingtetun
Bug 873972 - Fix typo in the settings name r=vingtetun
Merge pull request #10046 from dhylands/dhylands-876055-ds-settings.patch

Bug 876055 - Add defaults for the new device storage/automounter settings. r=gwagner