genstandalone. make it executable by default. improve docs.
genstandalone. make it executable by default. improve docs.

--HG--
extra : convert_revision : schettino72-20120104041547-ry51noikucp6q491

lelit/doit,lelit/doit,wangpanjun/doit,pydoit/doit,lelit/doit,Hinidu/doit,JohannesBuchner/doit,gh0std4ncer/doit,lelit/doit,saimn/doit