Added Comment model.
Removed fixtures, converted ed_news to south.
Merge branch 'convert_south'
Rebuilt db with Comment, converted to south. No fixture.
Added fixture back in, should be good for south now.
Added second sort criteria for home page; ranking_points, then submission_time.
New and home pages now show number of comments, or 'discuss' if 0 comments. No links.
Merge pull request #6 from ehmatthes/comment_system

Comment system