Merged revisions 160558 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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  r160558 | tilghman | 2008-12-03 11:34:34 -0600 (Wed, 03 Dec 2008) | 7 lines
  
  If an entry is added to the directory during a scan when another entry expires,
  then that new entry will not be processed promptly, but must wait for either a
  future entry to start or a current entry's retry to occur.  If no other entries
  exist in the directory (other than the new entries) when a bunch expire, then
  the new entries must wait until another new entry is added to be processed.
  This was a rather weird race condition, really.  Fixes AST-147.
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@160559 65c4cc65-6c06-0410-ace0-fbb531ad65f3