Updated accessible_output2. Add mac and a better linux support

src/accessible_output2/outputs/sapi4.py

@@ -1,5 +1,7 @@
+from __future__ import absolute_import
+from builtins import range
 from libloader.com import load_com
-from base import Output
+from .base import Output
 
 import logging
 log = logging.getLogger(__name__)