Support for distutils and fall back to appengine's memcache.

This lets you use `pip install https://github.com/potatolondon/django-nonrel-pytz/archive/master.zip` to grab the package.

Also this should work when Django is not available, falling back to appengine's
memcache support.
Change author, adds makezoneinfo.py for building zoneinfo.zip from the
pytz distribution archive.
Updated to 2012j Olson data. Version changed to 2012j-1.
Fixes last commit.
Merge pull request #1 from davidwtbuxton/master

Distutils compatibility and latest timezone data