Automatically .bombon instead of error when unbombable

[dgw]

It's a really common pattern for users (myself included) who have previously done .bomboff to:

• .bomb nick
• get rebuffed by the bot: Try again when you're bombable yourself
• .bombon
• .bomb nick again

Instead of this dance, would it make sense to just automatically perform an internal .bombon if an unbombable user bombs someone else? It would certainly reduce the boilerplate spam in channels where this module is used…

The automatic .bombon can be silent, send a NOTICE to the bomber, or send a public channel message; I'm not really bothered which at the moment. It can also be combined with the NOTICE already sent containing the wire color.

Also thinking about automatically running .bomboff again after the timeout elapses, but that'll be a separate feature if it even happens at all. That might make it too easy to stay unbombable most of the time while still bombing other users at will.