PB Comments Plugin

Updates the formatting of comments on Crikey's 'Poll Bludger' blog. Specifically, does the following things:

• Restores display of avatars in each post
• Adds ability to preview before posting
• Adds ability to automatically quote a post when writing a reply
• Adds ability to view post date by hovering over the "x minutes ago" text
• Adds ability to block specific users
• Adds pagination controls/ability to jump to a specific page
• Includes built-in ad-blocking
• Automatically fetches and displays new posts without needing a page refresh
• Displays the post number of each comment
• Autoquotes when creating a threaded reply
• Reformats the comment header section
• Automatically renders quoted text in italics
• Avoids rendering the same comment(s) twice