Change .travis.yml to allow IRC notifications
Change .travis.yml to allow IRC notifications

I *think* because the channel mode is +n the travis bot needs to join to
be able to post notices.

mysociety/popit,openstate/popit,Sinar/popit,openstate/popit,mysociety/popit,Sinar/popit,mysociety/popit,openstate/popit,mysociety/popit,Sinar/popit,Sinar/popit,openstate/popit,mysociety/popit