Create new Comments collection, publish and subscribre through the router. Add fixtures and reset DB.
Display comments on post page and number of comments on list page.
Add new comment form and method for insert() comment.
restrict subscription to comments of a specific post: subscription at route level rather than for whole router.
Denormalize commentsCount to include it as a field in Posts, hence available on every route without subscription to Comments.
Merge pull request #4 from paulld/add-comments

Add comments