Changes

* [irc://irc.mozilla.org/london #london] - general chat for people connected to or interested in the London MozSpace

* [irc://irc.mozilla.org/montreal #montreal] - general chat for people in Montreal, including community. Bilingual channel. (French-English)

* [irc://irc.mozilla.org/mozpdx #mozpdx] - general chat for the Mozilla Portland community

* [irc://irc.mozilla.org/mv #mv] - general chat for people in the Mountain View office