added responsive susy grid
responsive images
added padding to the heading for the img list
Merge branch 'susygrid'

Merged due to implementation of susygrid, failure with proprietary grid, plus Susy is super smart!
Merge branch 'master' of https://github.com/jrah/jrah.github.io

Conflicts:
	_site/css/main.css
	_site/feed.xml
	_site/illustrations/index.html
	_site/index.html
	_site/posters/index.html
	css/main.scss
	index.html