added filter to remove wpautop from shortcodes

It was making a mess with my Orbit shortcode - all better! Now you can
use whitespace liberally - if you need to add carriage returns or p
tags, do it the old fashioned way.
Removed styles

I had too much stuff in there that was specific to a site I am building
with it, so I removed anything non-essential. This should give you a
clean slate to start with, just like foundation.