Added category listing on main page, built template tutorials, and made a subdir for tutorials + index file

Also stopped tracking _site and some code kit files.
Merge branch 'master' of http://github.com/benjaminmikiten/benjaminmikiten.github.com

Conflicts:
	_config.yml
	_layouts/home.html
	_site/codekit-config.json
	_site/css/style.css
	_site/index.html
	_site/style.sass
	codekit-config.json
	css/style.css
	style.sass