Polls the server for new content, and adds them to the existing list of posts/messages. Updates alert & conversation totals along the way.
This add-on tries to only use a single poller across multiple tabs for the same thread/conversation, and a single poller for grabbing user alerts & conversations counts updates.
Supported content:
Threads (loads posts)
Conversations (loads conversation messages)
User (allows polling for updated alerts & conversations counts from...
