pressbooks/pressbooks — pull request #74 by bdolor (2014-09-02 21:38:59+00:00)
Title: Deny attributes on epub3 export

removing those attributes which generate errors against epubcheck 3.0.1

![screen shot 2014-09-02 at 2 33 39 pm](https://cloud.githubusercontent.com/assets/2048170/4126194/1aa3ff5e-32e9-11e4-8979-cddf130e5a56.png)