Add testimonials or just press links

Greyed out by default, hover gets a clickable link

1. http://thenextweb.com/insider/2015/03/03/gitlab-acquires-rival-gitorious-will-shut-june-1/
2. http://techcrunch.com/2015/03/03/the-great-git-debate/
3. http://www.huffingtonpost.com/andre-bourque/handy-tools-software-deve_b_6787766.html

Linking this to the Testimonials issue, located here: https://gitlab.com/gitlab-com/www-gitlab-com/issues/259

and will close.

Status changed to closed

mentioned in issue #259 (closed)