Implement HeatmapOverlay
fixed Intervals
Split up GPUHelper into GPUSurfacePainter, GPUSurfaceShader and GPUSurfaceCompactor. Adds class VertexAttribute
Merge master into OverlayOrca
started fixing saveables
Merge branch 'viewDieZweite' into somewhatBeautyQueen
Merge branch 'somewhatBeautyQueen' of https://github.com/v02460/ctt into somewhatBeautyQueen
implemented stuff in filters
Implement VertexAttribute and fix GPUSurface* classes
Add reset method to VertexAttribute
added missing methods to overlay interfaces
Merge branch 'viewDieZweite' into somewhatBeautyQueen
some more saveable implementation changes (done now)
Implement MacroblockOverlay
Add MacroblockOverlay test cases
Merge master into the (kind of)BeautyQueen