Merge pull request #59 from mikkoharju/direct

Add fullscreenSurface property (for direct rendering)
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[notificationtool] Set the remote dbus calls in the format expected by the notification manager
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Support for disabling notification previews on a per-window basis
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[lipstick] Relay supported USB modes to the QML UI
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[lipstick] Add notifications for new USB modes
Notification preview presenter unit test improvements
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Listen to mce and repaint when we are told the display is back on.

Previously, this was somewhat handled in mcompositor and the X stack, but now we
need to repaint the screen ourselves when it is turned back on, as the screen
contents may not survive being powered off.
Merge pull request #61 from rburchell/master

Listen to mce and repaint when we are told the display is back on.
[lipstick] Don't play feedbacks when updating notifications that did exist during startup
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[lipstick] Only play notification feedbacks when the associated previews are shown
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[lipstick] Register QWaylandSurface so that it can be used from Qml implementations
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Store the launcher icon positions when a .desktop file changes to be non-displayable