updating site

updated the site, in the about page. this should be moved to the index
type=text/javascript is not required.  Brevity!
Beginnings of #75, propagate clicks across sites when a site opts-in to the clicking.
Fix #61, make dock button pulse when window is closed.
Updating TowTruck interface menu.
Merge branch 'master' of https://github.com/mozilla/towtruck

Conflicts:
	app/http/views/layout.ejs
	app/http/views/site/about.ejs
	app/http/views/towtruck/interface.html
Adding MPLv2 to the JavaScript files that didn't include it.
updating the site
updating the carousel
updated the How to Install section
made some more changes
Adding google analytics to pages rendered in layout.
updated the FEatures section
updated the copy
Moving global style stuff to style.css. Removing invalid HTML.
Updating footer with correct moz logo. Adding container around footer.
Stripping out session management and Persona since we're actively using neither of these. They're easy to add later.
Removing services Procfile. -- It only ran redis.
Removing bak file, we shouldn't need this anymore.
Adding license to a few files I missed.