future proofing is good, but...

since print() was made a function in py3, i can predict at some point
that return will be made a func as well. sure, good.
but "return()" *currently* returns an empty tuple. We want to
explicitly return None for testing purposes.

aif/system/console.py

@@ -96,4 +96,4 @@ class Console(object):
                 fh.write(line)
         os.chmod(cfg, 0o0644)
         os.chown(cfg, 0, 0)
-        return()
+        return(None)