lots of style updates across the various pages. Notably:
Landing page image placement, color/typography, background
About page - image placeholder, copy needs to be forced to right column, button needs styling
Feed page - module background and stroke started navigation styling

Need: navigation styled to full width of app; footer to be added; image for beers in feed, toggle for Rank option (draft, bottle, can)
Merge branch 'master' of https://github.com/mcelaney/rate-mugwarrior