Merged revisions 156229 via svnmerge from

Merged revisions 156229 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4

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  r156229 | tilghman | 2008-11-12 12:39:21 -0600 (Wed, 12 Nov 2008) | 11 lines

  Revert revision 132506, since it occasionally caused IAX2 HANGUP packets not
  to be sent, and instead, schedule a task to destroy the iax2 pvt structure
  10 seconds later.  This allows the IAX2 HANGUP packet to be queued,
  transmitted, and ACKed before the pvt is destroyed.
  (closes issue #13645)
   Reported by: dzajro
   Patches:
         20081111__bug13645__3.diff.txt uploaded by Corydon76 (license 14)
   Tested by: vazir
   Reviewed: http://reviewboard.digium.com/r/51/
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@156243 65c4cc65-6c06-0410-ace0-fbb531ad65f3