Fix ZipLocation.open path separator on Windows
Fix ZipLocation.open path separator on Windows

mammadori/pyglet,oktayacikalin/pyglet,mammadori/pyglet,theblacklion/pyglet,theblacklion/pyglet,theblacklion/pyglet,theblacklion/pyglet,mammadori/pyglet,theblacklion/pyglet,oktayacikalin/pyglet,oktayacikalin/pyglet,mammadori/pyglet,oktayacikalin/pyglet,oktayacikalin/pyglet