Merged revisions 280984 via svnmerge from

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

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  r280984 | tilghman | 2010-08-05 02:46:36 -0500 (Thu, 05 Aug 2010) | 22 lines
  
  Merged revisions 280983 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.6.2
  
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    r280983 | tilghman | 2010-08-05 02:40:47 -0500 (Thu, 05 Aug 2010) | 15 lines
    
    Merged revisions 280982 via svnmerge from 
    https://origsvn.digium.com/svn/asterisk/branches/1.4
    
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      r280982 | tilghman | 2010-08-05 02:28:33 -0500 (Thu, 05 Aug 2010) | 8 lines
      
      Change context lock back to a mutex, because functionality depends upon the lock being recursive.
      
      (closes issue #17643)
       Reported by: zerohalo
       Patches: 
             20100726__issue17643.diff.txt uploaded by tilghman (license 14)
       Tested by: zerohalo
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@280985 65c4cc65-6c06-0410-ace0-fbb531ad65f3