Use a method to submit the post.
Sort posts by submitted timestamp.
Added edit posts form
Added basic permission to check the post's owner.
Only allow changing certain fields of posts.
Basic error reporting.
Actually use the error reporting.
Monitor which errors have been seen, and clear on routing.
Added comments collection, pub/sub and fixtures.
Display comments on `postPage`.
Created a form to submit comments.
Made a simple publication/subscription for comments.
Denormalized the number of comments into the post.
Added basic notifications collection.

And create a notification when a comment is created.
Display notifications in the header.
Only sync notifications that are relevant to the user.
Added enough posts that pagination is necessary.
Added paginated subscription package, and ordered post by submitted date.
Use the paginated subscription to step through posts.
Use a single post subscription to ensure that we can always see the right post.