GraphicsDeviceManager never set in Game

[renaudbedard]

The _graphicsDeviceManager field of Game is never set, and so the GLDevice is never disposed from the Game's Dispose() method (and subsequent dispose chain).

I'm not sure how it's supposed to grab it though?

[flibitijibibo]

Whuh, was checking the wrong service:

f65ebc7

Should be fixed now.