Adds download link and adjusts the icon layout
Adds retina images and icons zip to download
Merge branch 'gh-pages' of github.com:mariquita/emacs.sexy into mariquita-gh-pages

Conflicts:
	.DS_Store
	css/.sass-cache/1551fcd166b87c73bd191ec810eb4471a71730a9/mediaqueries.scssc
	css/.sass-cache/1551fcd166b87c73bd191ec810eb4471a71730a9/style.scssc
	index.html
Merge branch 'mariquita-gh-pages' into gh-pages
Minor fixes on Mery's PR