Final code for production

Posted code
Merge branch 'rr-analyticstracking'
Merge branch 'tb-contacthtmlfix'
about.html convert to php

.html converted to php and header.php and footer.php have been added.
Tabs in header.php changed to include About. For now, the About tab
only shows up on the About page.
Merge branch 'tb-abouthtmlfix' into staging