Added quartz-based decode_animation method.
Added quartz-based decode_animation method.

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