Add new route for submit new post, new template with the form, and event handler using jQuery to insert() new Post.
secure access to Posts.insert() + grant access when user is logged in
Add access_denied template and redirection if not logged in.
Show loading page while checking if user is logged in
Add validation of new post on the server side
Sort posts by submitted time.
Merge pull request #1 from paulld/new-post-form

New post form