Huge cleanup. Moved everything into ./css, grouped separate 'core' and * CSS into one. Two spaces instead of four.
Moved old tests from src into examples/.
Removed pager.css. Added attribution headers for Pure CSS (Yahoo) and Boostrap (Twitter).
Updated normalize and bower.json.
Updated Gruntfile. Renamed output file to base.css, to avoid confusion.
Missing attributions.
Headings.
Gruntfile banner.
Removed unused stuff.