Fix gl_info to work with the various different context classes
Fix gl_info to work with the various different context classes

google-code-export/pyglet,google-code-export/pyglet,Alwnikrotikz/pyglet,kmonsoor/pyglet,shaileshgoogler/pyglet,xshotD/pyglet,Austin503/pyglet,shaileshgoogler/pyglet,mpasternak/pyglet-fix-issue-518-522,mpasternak/michaldtz-fixes-518-522,xshotD/pyglet,odyaka341/pyglet,cledio66/pyglet,cledio66/pyglet,qbektrix/pyglet,shaileshgoogler/pyglet,mpasternak/michaldtz-fixes-518-522,google-code-export/pyglet,cledio66/pyglet,Austin503/pyglet,kmonsoor/pyglet,mpasternak/pyglet-fix-issue-552,Austin503/pyglet,gdkar/pyglet,kmonsoor/pyglet,Austin503/pyglet,kmonsoor/pyglet,Alwnikrotikz/pyglet,mpasternak/michaldtz-fix-552,Austin503/pyglet,shaileshgoogler/pyglet,xshotD/pyglet,gdkar/pyglet,odyaka341/pyglet,qbektrix/pyglet,mpasternak/pyglet-fix-issue-518-522,arifgursel/pyglet,arifgursel/pyglet,arifgursel/pyglet,mpasternak/pyglet-fix-issue-518-522,google-code-export/pyglet,mpasternak/michaldtz-fix-552,mpasternak/michaldtz-fixes-518-522,mpasternak/pyglet-fix-issue-552,arifgursel/pyglet,odyaka341/pyglet,odyaka341/pyglet,odyaka341/pyglet,cledio66/pyglet,arifgursel/pyglet,qbektrix/pyglet,mpasternak/pyglet-fix-issue-552,qbektrix/pyglet,Alwnikrotikz/pyglet,mpasternak/michaldtz-fix-552,gdkar/pyglet,mpasternak/pyglet-fix-issue-518-522,shaileshgoogler/pyglet,gdkar/pyglet,xshotD/pyglet,gdkar/pyglet,mpasternak/michaldtz-fixes-518-522,kmonsoor/pyglet,mpasternak/michaldtz-fix-552,xshotD/pyglet,cledio66/pyglet,Alwnikrotikz/pyglet,Alwnikrotikz/pyglet,google-code-export/pyglet,mpasternak/pyglet-fix-issue-552,qbektrix/pyglet