Memory Leak in app_queue

Memory Leak in app_queue

The patch that was committed in the 1.6.x versions of Asterisk for
ASTERISK-15862 actually fixed two issues.  One was not applicable to 1.8
but the other is.  queue_leak.patch fixes the portion applicable to 1.8.

(closes issue ASTERISK-18265)
Reported by: Fred Schroeder
Patches:
      queue_leak.patch (license #5049) patch uploaded by mmichelson
Tested by: Thomas Arimont

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@333010 65c4cc65-6c06-0410-ace0-fbb531ad65f3