Update to Ghost 0.5.0

Hi David, your theme is great, i updated Ghost and everything works fine except that the author image (gravatar) above Disqus comments became very big and makes the page much wider, is it in your to do list to make any changes to your theme? 

Me my self i played a little with the new Casper screen.css and i copy/paste a new section called (author profile) to your screen.css seems to solve the issue, but i don't know if it is OK to alter it in this way.

Thank you.