Use twitter bootstrap on the protests page

Adapt the instructions on http://www.datatables.net/blog/Twitter_Bootstrap_2 to overwrite dataTables' default look and feel with Twitter Bootstrap's. This gives the site a little more cohesion. 

There's a screenshot of this effect at http://kevin.heylaude.net/tmp/protest-bootstrap-ui.png.

Tested to work in FireFox/Linux and Chromuim/Linux.