[compositor] Notify the compositor when a frame is started
Merge pull request #176 from giucam/startframe

[compositor] Notify the compositor when a frame is started
Bump version
[lipstick] Use QPointer for LipstickCompositorWindow to avoid referencing dangling pointers
Merge pull request #177 from Vesuri/windowpixmapitemfix

[lipstick] Use QPointer for LipstickCompositorWindow to avoid referencing dangling pointers
Bump version