These changes submitted by moy via bug 6992, to add a Dial 'End' event to...

These changes submitted by moy via bug 6992, to add a Dial 'End' event to asterisk. I include some changes to astman to cover other events that have been added.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@46541 65c4cc65-6c06-0410-ace0-fbb531ad65f3