Fix local settings template

- Fix indentation
- Use proper name for sqlite3
Upgrade Django to 1.4.5
Add Pillow (PIL fork) as required by ImageFields
Remove executable that was deprecated 4y ago
Fix admin interface

The fix in 53e25943 was insufficent to make admin continue to work after the
upgrade to Django 1.4.
Move manage.py one level up, simplify install docs

This follows the new project layout defaults from Django 1.4.
Add new WSGI application

- In the default location for WSGI applications in Django 1.4
- Configured WSGI_APPLICATION so that the development server use the same WSGI
  application as production
- Included an option for making the WSGI application load a virtualenv
  environment.