Merged revisions 287757 via svnmerge from

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

........
  r287757 | twilson | 2010-09-20 18:51:38 -0500 (Mon, 20 Sep 2010) | 7 lines
  
  Avoid infinite loop with certain local channel connected line updates
  
  Compare connected line data before sending a connected line indication to avoid
  possible loops.
  
  Review: https://reviewboard.asterisk.org/r/932/
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@287764 65c4cc65-6c06-0410-ace0-fbb531ad65f3