Merged revisions 284950 via svnmerge from

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

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  r284950 | dvossel | 2010-09-03 12:29:02 -0500 (Fri, 03 Sep 2010) | 14 lines
  
  authenticate OPTIONS requests just like we would an INVITE
  
  OPTIONS requests should be treated the same as an INVITE
  This includes authentication.  This patch adds the ability for
  incoming out of dialog OPTION requests to be authenticated
  before providing a response indicating whether an extension
  is available or not.  The authentication routine works the
  exact same way as it does for incoming INVITEs.  This means
  that if a peer has 'insecure=invite' in their peer definition,
  the same will be true for the processing of the OPTIONS request.
  
  Review: https://reviewboard.asterisk.org/r/881/
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@284951 65c4cc65-6c06-0410-ace0-fbb531ad65f3