Make IRC work again (oops), and make nick a mandatory option with no default (so you have to set it, so that we don't get a million bots all called rapidsms).
Make IRC work again (oops), and make nick a mandatory option with no
default (so you have to set it, so that we don't get a million bots all
called rapidsms).

rapidsms/rapidsms-legacy,rapidsms/rapidsms-legacy,rapidsms/rapidsms-legacy