Removed Foundation Sass library

We're using the Compass ruby gem instead
Consolidated Spens Sass library

Now we can import one file instead of each one
Updated footer gradient
Added some more colors
Using Compass font mixin instead of custom mixin
Updated Gruntfile so source JS scripts aren't deployed
Moved some styles from revisions.css to the Sass partials and updated the nav styles
Reorganized import lines
Merge branch 'master' of https://github.com/SpaceAdvocates/SpaceAdvocatesWebsite

Conflicts:
	assets/scss/_config.scss
	assets/scss/_fonts.scss
	assets/scss/modules/_module-footer.scss
	assets/scss/modules/_module-nav.scss
	assets/scss/style.scss
	header.php
	style.css