DISQUS discussion.
Disqus reset called on load
DISQUS divided to several places.
Merge branch 'master' into discussion

Conflicts:
	public/coffeescripts/course.js/course.coffee
	public/coffeescripts/course.js/pagedesign.coffee
	public/coffeescripts/course.js/sandbox.coffee
Dont show discussion for empty sandbox.
Sandbox: Added one line comment.
Merge pull request #80 from progma/discussion

DISQUS discussion.