Merged revisions 315645 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.8

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  r315645 | rmudgett | 2011-04-26 17:14:31 -0500 (Tue, 26 Apr 2011) | 21 lines
  
  The 'e' special extension fails to trigger in at least two cases.
  
  The 'e' extension is a fall back for the 'i', 't', or 'T' extensions if
  any of them do not exist.  Many of the places the 'e' extension was
  supposed to be invoked fail because the priority was set wrong.  There
  were two places where the 'e' extension was not even checked for fall
  back.
  
  * Made invoke the 'e' extension similarly to the previous 'i', 't', or 'T'
  extension check and added the 'e' extension as a fall back to the two
  missing locations.
  
  * Prioritized and optimized some hangup tests associated with the 'e'
  extension.
  
  (closes issue #19136)
  Reported by: kshumard
  Tested by: rmudgett
  
  Review: https://reviewboard.asterisk.org/r/1196/
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@315649 65c4cc65-6c06-0410-ace0-fbb531ad65f3