Tidied random walk functions into one
Worked on Random Walks
Merge branch 'master' into Random-Walks-Post

Conflicts:
	_posts/2013-02-14-random-walks.html
	js/random-walks-1.js
	js/random-walks-2.js
Work on histogram
Moved random-walks.html to make use of Drafts functionality
Got rid of DS Store files
Merge branch 'post-random-walks'

Conflicts:
	.DS_Store
	_posts/.DS_Store