basic error reporting
use Meteor.defer to mark error as 'seen'.
clearErrors in a router before-filter.
comments collection, fixture data, pub/sub
display comments on postPage view
Submitting comments is EZ.
client subscribes to post comments at the route level
renormalize commentsCount, store/increment count on posts record
notifications collection, pub/sub, #createCommentNotification
display notifications
add a bunch of posts in fixtures
add a query arg "/postsLimit" and configure limiting at route level.
also define data context (the value of 'this') at the route level, so can remove postList template helper function.
Build conditional into publication to load one post for postPage.
use PostsListController route controller
Add 'load more posts' link on postsLists
add progress bar package, disable it for postSubmit page
build 'singlePost' subscription for show/edit pages
guard to prevent errors where helper is called when navigating from index page to postPage-- not sure why the postsList helper is being called here.