"by request" bot

1. Create a new bot username (partially to skirt around subreddit bans, also to limit messaging to the main bot) and a subreddit of the same name.
2. Build a script that monitors this subreddit for links to reddit submissions or comments (or reddit links in a self post body) and directs the bot to scrape the associated submissions.
3. The bot then responds to the bot-specific-subreddit submission and the source submission (if it's able) with the list of videos.
4. As with the main bot, this bot should update (every hour) on submissions made within 24 hours.

Creation of this bot could probably be simplified by generalizing some of the simplebot code. This might not even be necessary, would be great if I could just use everything as is. I think at least post_aggregate_links could/should be generalized, or maybe moved into a separate script. simplemonitor could also potentially be generalized.