1. Deprecate SetMusicOnHold and WaitMusicOnHold.

2. Add a duration parameter to MusicOnHold

(closes issue #11904)
Reported by: dimas
Patches:
      v2-moh.patch uploaded by dimas (license 88)
	  Tested by: dimas



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@103658 65c4cc65-6c06-0410-ace0-fbb531ad65f3