I am thinking of starting with the "Start Bootstrap" theme from Bootstrap and I want to change it and add stuff, new pages to work with Wordpress and then put it up for sale.
http://startbootstrap.com/template-overviews/creative/
Under the Apache License Version 2.0 can I change (back-end and front-end) a theme and then sell it? Can I take credit for my work? And if not then what I am allowed to do under this policy?