Swtich to minified Foundation, Fix styling bug

The last child of .columnContainer was aligning right, and overriding the
corresponding CSS rule in main.css wasn't having an effect. Some syntax errors
in main.css were responsible (don't need commas after each rule, a float value
was set to an id).
Merge pull request #3 from jkrmr/master

Swtich to minified Foundation, Fix styling bug