Added some notes on SAGE.
Merge branch 'master' of github.com-bradyt:bradyt/bradyt.github.io

Conflicts:
	README.md
	_layouts/default.html
	_layouts/page.html
	_layouts/post.html
	_posts/2014-03-09-Trying-to-add-math-symbols.md
	_posts/2014-07-12-Testing-markdown.md
	_site/2014/03/06/My-first-post.html
	_site/2014/03/07/How-did-you-make-that-graph.html
	_site/2014/03/09/Trying-to-add-math-symbols.html
	_site/README.md
	_site/index.html
	index.html