Add bootstrap to repo. --ch07l004--

upgrade to bootstrap 3.0.3. quash me
Refactor templates to use a base template
Adapt base html to include bootstrap boilerplate. --ch07l006--
use bootstrap alignment classes in base. --ch07l007--
Fix static links in base head
Add Jumbotron
add bootstrap classes to form input. --ch07l010--
Use our own CSS file
add STATIC_ROOT to settings.py --ch07l018--
Disable admin app