About page HTML

No issue

This is the non-functional, non-Ember markup for the [About page](https://github.com/TryGhost/Ghost-UI/issues/23) from Ghost-UI
Signin after Signup

closes #3125
- added manual authentication after signin
- added manual authentication after setup
Merge pull request #3140 from sebgie/issue#3125

Signin after Signup
Merge pull request #3155 from PaulAdamDavis/about-page

About page HTML