Remove Bourbon

Compass will be taking it's place.
Initialize Compass
Edit screen.scss

I reworked the section comments, made some slight tweaks and added
Compass to the import list.
Redo markup in index.html
Edit README.md
Rename Logo file and add updated version

Edited the CSS with the new logo name (v2)
Turn off line_comments and set output_style in config.rb
Edit links in stylesheet
Update compiled stylesheet
Change site logo to an anchor tag.

Also removed the Break tag from .intro, styling is done in the
css, not the html!
Increase logo resolution
Edit stylesheet
Revert logo size to before commit 8aa300d
Add CSS directory to list of ignored files

Its annoying having to add the compiled CSS file each time a change
is made to the Sass file.