[Buildbot] #2905: minimise number of IRC bots

[Buildbot trac]

#2905: minimise number of IRC bots
-------------------+--------------------------------
Reporter:  sa2ajj  |       Owner:
    Type:  task    |      Status:  new
Priority:  major   |   Milestone:  sys - on-bb-infra
 Version:          |  Resolution:
Keywords:  irc     |
-------------------+--------------------------------

Comment (by verm):

 The other issue with having a single bot is when it dies everything dies.
 It ends up being just as much work to maintain a single bot as a gateway
 as it is to run individual bots.  Also, you end up hacking the 'front-end'
 bot over time to support individual needs for the services behind it.

 I don't think there is any benefit to having a single bot.  bb-trac is a
 gateway that listens on the local network and simply redirects messages
 sent to it.  We can rename it to bb-bot and prepend messages with [trac].
 Anything else within the network that needs to chat to IRC can use the
 gateway.  The change is simple if it's useful.

--
Ticket URL: <http://trac.buildbot.net/ticket/2905#comment:6>
Buildbot <http://buildbot.net/>
Buildbot: build/test automation