Add support to see if a peer has someone on hold, and fix a small bug with...

Add support to see if a peer has someone on hold, and fix a small bug with getting the state name. This one goes out to you mog!


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@39500 65c4cc65-6c06-0410-ace0-fbb531ad65f3