triangle example fails due to old winit bug

[joseluis]

with recent versions of rust the window closes when you move the mouse over it. It's a bug in winit 0.19 which is a dependency of the glutin version used in the example.

[ebkalderon]

Thanks for reporting this issue, @joseluis! Unfortunately, there's not much that can be done here because the included triangle example still relies on a the pre-ll version of gfx, which in turn does not support the newest version of neither winit nor glutin, preventing me from upgrading. There is an open issue to port the example to wgpu-rs instead (#74), which is sort of like the spiritual successor to old-school gfx. I can try porting it over and see if it resolves the problem.

[ebkalderon]

This crash should no longer occur now that the example is running on a modern graphics framework. Thanks again for reporting!