[[ GraphicsPerformance ]] Ensure raster format correctly indicates bitmap opacity
[[ GraphicsPerformance ]] Add MCGRegion to libgraphics
[[ GraphicsPerformance ]] Update MacOS X redraw to use MCGRegion
[[ GraphicsPerformance ]] Use opaque context when drawing stack snapshot
[[ GraphicsPerformance ]] Update Windows redraw to use MCGRegion
[[ GraphicsPerformance ]] Implement save / restore for context clip region to replace getclip()/setclip()
Merge branch 'refactor-graphics_performance' of https://github.com/runrevian/livecode into refactor-graphics_performance
[[ GraphicsPerformance ]] Update linux to use MCGRegionRef
[[ GraphicsPerformance ]] Update Android & iOS to use MCGRegions
[[ GraphicsPerformance ]] Update Android to use MCGRegions
[[ GraphicsPerformance ]] Update OSX server to use MCGRegions
[[ GraphicsPerformance ]] Update Win32 server to use MCGRegions
[[ GraphicsPerformance ]] Update Linux server to use MCGRegions
[[ GraphicsPerformance ]] Remove sysregion.cpp from iOS project
Merge branch 'refactor-graphics_performance' into refactor-graphics_performance_merge

Conflicts:
	engine/src/control.cpp
	engine/src/group.cpp
	engine/src/mac-window.mm
	libgraphics/libgraphics-mobile.xcodeproj/project.pbxproj
	libgraphics/libgraphics.xcodeproj/project.pbxproj
Merge branch 'refactor-graphics_performance_merge' of https://github.com/runrevian/livecode into feature-accurate_redraw_regions
Merge branch 'feature-accurate_redraw_regions' into develop