remove assets folder
add grunt stuff
User proper asset declarations
adjust site footer classes
Remake grid classes
user proper visually hidden class
Add aria role to main section
use h3's instead of h4's
Adjust homepage content
Merge branch 'gh-pages' of https://github.com/drewbolles/drewbolles-jekyll into dev

Conflicts:
	_data/portfolio.yml
	_includes/header.html
	_includes/site-header.html
	_layouts/default-post.html
	assets/config.rb
	assets/css/screen.css
	assets/sass/cavern
	assets/sass/ui/_ui.sass
	assets/sass/ui/base/_elements.sass
	assets/sass/ui/base/_headings.sass
	assets/sass/ui/base/_page.sass
	assets/sass/ui/tools/_utility.sass
	index.html
	sass/ui/_elements.sass
	sass/ui/_influences.sass
	sass/ui/_layout.sass
	sass/ui/_media.sass
	sass/ui/_placeholders.sass
	sass/ui/_rivers.sass
add images