Merge pull request #43 from aaronkennedy/master

Tag notification windows
[lipstick] Rename the internal Notification class to LipstickNotification
[lipstick] Add notification category definitions for network related notifications
Bump version
Set the compositor geometry before the component completes
[lipstick] Allow windows to define touch regions

This limits the area of the window to which touch and mouse
events will be delivered.