Merge anth's realtime patch, as well as the bindaddr fix that didn't make it...

Merge anth's realtime patch, as well as the bindaddr fix that didn't make it in somehow yesterday. (bug #2588)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3922 65c4cc65-6c06-0410-ace0-fbb531ad65f3