User login related pages need to be styled.

[jklina]

Just need some markup to make the login pages fall in line with the rest of the site. Info on the form locations can be found here:

https://github.com/thoughtbot/clearance#overriding-views

Currently most of the views are still in the Clearance Gem, but if the markup needs to be changed we can override them. If you need help with this just let me know!