Made the header it's own polymer element.
Added a login button and some styles.

It's probably not very beautiful, and it's not at all functional, but it is at
least there.
Added what will eventually be a login box.
Merge branch 'master' of github.com:turbowookie/turbo-wookie
We have a way to login from the frontend.

The only issue is that there is no way to register... Oh and there's no login
on the backend either.
Merge branch 'master' of github.com:turbowookie/turbo-wookie