Win2D 1.20.0 – bugfix release

Win2D version 1.20.0 is now available on NuGet (for Windows 10 or Windows / Phone 8.1) and GitHub. Changes in this release: The image effects that were added in Windows 10 Anniversary Edition (AlphaMaskEffect, CrossFadeEffect, OpacityEffect, and TintEffect) are no longer marked as experimental. Made sure CanvasControl::Changed always executes on the UI thread. This fixes a crash…