A few final fixes to get the code working under python2.7.

1) I didn't finish turning this from a CGI script into a WSGI script.
This involved getting rid of main() and moving the endpoint in
app.yaml to the wsgi script instead.

2) remote_api is specified differently, as well, in wsgi-land.

3) Django defaults to 1.2 (or greater) in python27, so I don't need to
-- indeed, cannot -- specify that anymore.

Auditors: marcos

Test Plan:
Updated snippets.py to prod and visited
   http://weekly-snippets.appspot.com/
and saw it render correctly.