Merged revisions 314628 via svnmerge from

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

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  r314628 | mnicholson | 2011-04-21 13:24:05 -0500 (Thu, 21 Apr 2011) | 27 lines
  
  Merged revisions 314620 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.6.2
  
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    r314620 | mnicholson | 2011-04-21 13:22:19 -0500 (Thu, 21 Apr 2011) | 20 lines
    
    Merged revisions 314607 via svnmerge from 
    https://origsvn.digium.com/svn/asterisk/branches/1.4
    
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      r314607 | mnicholson | 2011-04-21 13:19:21 -0500 (Thu, 21 Apr 2011) | 14 lines
      
      Added limits to the number of unauthenticated sessions TCP based protocols are allowed to have open simultaneously.  Also added timeouts for unauthenticated sessions where it made sense to do so.
      
      Unrelated, the manager interface now properly checks if the user has the "system" privilege before executing shell commands via the Originate action. 
      
      AST-2011-005
      AST-2011-006
      
      (closes issue #18787)
      Reported by: kobaz
      
      (related to issue #18996)
      Reported by: tzafrir
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@314666 65c4cc65-6c06-0410-ace0-fbb531ad65f3