Update git submodule for twitter bootstrap to the v3.0.1 tag and move it: static -> static/twitter_bootstrap

* Git submodule is moved so that the staticfiles are better namespaced within the django app
Rename README.{md->rst} to translate markdown to reStructuredText
Convert README sources from markdown to reStructuredText
Update setup and MANIFEST for 3.0.1 release
Update demo_site for bootstrap 3.0.1

* Also, remove nginx setup as we can now just run it with gunicorn+dj-static for a realistic production scenario
Upgrade for Twitter bootstrap 3.0.1

* Move bootstrap git submodule so that the statcfiles for the django app are properly namespaced
* Remove nginx setup from demo app, as running with gunicorn + dj-static is a reasonable production-like scenario
* Convert README from markdown to reStructuredText