Adding README, removing blueprint, adding CSS

CSS is from various projects (including one file from blueprint). See
README.md.
Removing the html5.js from unsemantic

Leaving the original html5shiv in its place. It is the same project and
this one is a nicer version.
Adding unsemantic's ie.css
Layout seems to be fine for now

Also adding ie stuff and ifs and stuff and stuff.
Making the theme work.