recommend python 2.7; nobody reasonable supports 2.6 and we do not work with 2.6

README

@@ -11,7 +11,7 @@ Right now it only sorta does the first two.
 
 You will need, at the moment:
   Tor installed somewhere in your path.
-  Python 2.5 or later
+  Python 2.7 or later
 
 Stuff to try:
   ./chutney configure networks/basic