Removed OpenTK.Platform.Utilities.CreateWindowInfo and made the platform-specific CreateWindowInfo methods public (e.g. CreateX11WindowInfo).
Moved Mono Windows.Forms-specific code into X11GLControl.
Removed OpenTK.Platform.Utilities.IsIdle.
Removed obsolete methods from OpenTK.Platform.Utilities.
Marked OpenTK.Platform.Utilities.CreateGraphicsContext as obsolete (use GraphicsContext constructor instead).
Made IWindowInfo implementations private.
members are accessed (issue [#1141]: "Unhandled exception in
GlControl possible bug in rev 2207"). Throw ObjectDisposedException
if public members are accessed after the GLControl has been
disposed. Force the create/recreation of the control if a public
member is called and the control handle or context does not exist.