footer.less: Remove unused styles

Clean up some old styles which are no longer used.
Add a util namespace

The purpose of this is to collect useful utility functions.
Redesign the footer to be more minimalist

There was little purpose in having so much visual clutter in the
footer. Just say who made the site, and link to an "About us" page.
Import first draft logos

Very basic first attempt at a logo. The protein image is public domain
from Wikipedia, see:

    http://en.wikipedia.org/wiki/File:Myoglobin.png
navbar: Add logo image

This adds a little 32x32px rendition of the protein logo to the top left
corner of the navbar.
scaffolding.less: Enforce a minimum page width
Unify navbar and homepage search styles

Use the same component layout and styles.
views/index: Use new logo instead of header text