Add nav links and move aside to front in header.
Add user_id, commentable_id and commentable_type to user's attr_accessible.
Add parent_id to comment's attr_accessible.
Show vote buttons and comments on homepage.
Add helper to display comment trees.
Add view partial for comments.
Add iterations and comments instance variables to home controller.
Require base stylesheet.
Add base stylesheet.
Give child comments a left margin of 40px.
Remove child comment view partial.
Add comment form and render on snippet of the day page.
Add comments controller with show and create actions.
Add hidden fields for commentable_type, commentable_id and parent_id in comment form partial.