update gitignore, revert vm pyglet fix

.gitignore

+*.pyc
+*.py~
+__pycache__

env/simple_intersection/utilities.py

@@ -201,9 +201,14 @@ def config_Pyglet(pyglet, win_x, win_y):
     """
 
     pyglet.options['debug_gl'] = False
-    config = pyglet.gl.Config()
-    # This configuration doesn't work on some screens
-    # config = pyglet.gl.Config(sample_buffers=1, samples=4)
+
+    # Use the no arguments version, if you don't have a GPU. Uncomment the
+    # line below then.
+    # config = pyglet.gl.Config()
+
+    # Otherwise use the following line.
+    config = pyglet.gl.Config(sample_buffers=1, samples=4)
+
     window = pyglet.window.Window(width=win_x, height=win_y, config=config)
     return window