Support multi-lines message in the `say` method.
Add the `invite` listener.

Data attached to the listener are: `from`, `channel` and
`invitation_channel`.
Better support of multi-channels.
[auto] Merge from Irc

    • #fba96e1 — Support multi-lines message in the `say` method. (Ivan Enderlin, 2014-01-10)
    • #3c0b744 — Add the `invite` listener. (Ivan Enderlin, 2014-01-10)
    • #98c69b2 — Better support of multi-channels. (Ivan Enderlin, 2014-01-10)

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Merge branch 'master' of /var/lib/git/repositories/Library/Irc