Bootstrapping

Just bootstrapping the project by taking the templates given in Twitter Bootstrap website.
Contained in this PR:
- [ ] Merge with Django Project Structure. (i.e. put these files inside `templates` folder for html and `statics` folder for other files.
- [x] index.html, which contains the Jumbotron, fixed-navbar, and fixed-footer templates in bootstrap website.

Please take a look at #2 before merging this