avoid the following null pointer:
if the IrcClient._Worker handles a ReplyCode.InviteList
the MessageParser won't put a channel in
but _HandleEvents calls _Event_RPL_INVITELIST and there is a valid channel need
Merge pull request #16 from lformella/master
Fixed race condition when initializing the logger by making it fully thread-safe
Merge branch 'stable'
Merge branch 'master' into smuxi-master
Fixed release build
Merge remote-tracking branch 'github/master'
Merge branch 'master' into smuxi-master
Fixed leaking IdleWorkerThread
Merge branch 'master' into smuxi-master