fixed basepython for tox envs, thanks --showconfig

also, added latest django 1.4 release, which doesn't error out
currently.

Downgraded python3.3 to python3.2, as thats what the lastest debian
stable includes.  I'm working on compiling pypy and python3.3 on the
test box, so those will probably be re-added as time allows.

failing tests: still solr context extraction + spatial