Fixed vsync on X11.
Updated GraphicsContext interface, for better extensibility. Some public functions were moved to IGraphicsContextInternal.
Renamed DisplayDevice.PrimaryDisplay to DisplayDevice.Default.
Updated and documented new GameWindow constructors.
Improved GameWindow.Exit, added GameWindow.ExitAsync() and improved error handling.
Improved GraphicsContext and NativeGLWindow APIs (construction in constructor).
Made ContextHandle public.
Updated GameWindow and its implementations to use GraphicsFormat instead of the obsolete DisplayMode.
Updated license.
Updated some docs.
Fixed CLSCopmliant warnings in XRamExtension.cs
Removed the OnCreate/OnDestroy methods from INativeGLWindow.
Added convenience overloads to OpenTK.OpenGL.GL: Color3 and Color4 can now take a System.Drawing.Color directly.