Replacing links on home page with buttons
Merge branch 'master' into making-buttons-for-home-page-links
Turning home page links into buttons
Adding prominent link on home page about running a bootcamp
Adding tooltips to buttons
Merge pull request #133 from gvwilson/adding-link-to-request-bootcamp

Adding prominent link on home page about running a bootcamp
Updating bibliography
Adding Tracy Teal to acknowledgments, mentioning Greg's Sloan grant
Merge pull request #135 from gvwilson/adding-hinsen-version-control-paper

Updating bibliography
Putting buttons on home page and moving 'mail us about a bootcamp' link