Allow channel names that start with a '&' character (see RFC 1459).
BitlBee, an IRC to other chat networks gateway, uses "&bitlbee" as its
control channel.
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Test channel name that starts with '&' character.
Merge pull request #32 from voegelas/bitlbee

Allow channel names that start with a '&' character