win32 media pause/stop/play/get_time, and don't crash any more.
win32 media pause/stop/play/get_time, and don't crash any more.

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