AMI agents list called on shutdown causes a segfault, introducing proper locking
will prevent this.
(closes issue ASTERISK-18092)
Reported by: agustina
Patches: chan_agent.patch (License #5041) patch uploaded by irroot
git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@335978 65c4cc65-6c06-0410-ace0-fbb531ad65f3