Load window now cleans itself up properly.

rtv/utils.py

@@ -92,8 +92,8 @@ class LoadScreen(object):
             for i in xrange(len(trail)+1):
 
                 if not self._is_running:
-                    # TODO: figure out why this isn't removing the screen
+                    window.clear()
-                    del window
+                    window = None
                     self._stdscr.refresh()
                     return