Merged revisions 334617 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/10

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  r334617 | alecdavis | 2011-09-07 19:45:00 +1200 (Wed, 07 Sep 2011) | 17 lines
  
  Merged revisions 334616 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.8
  
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    r334616 | alecdavis | 2011-09-07 19:33:39 +1200 (Wed, 07 Sep 2011) | 10 lines
    
    Prevent segfault if call arrives before Asterisk is fully booted.
    
    Prevent ast_pbx_start and ast_run_start from starting a new thread unless asterisk
    is fully booted.
     
    alecdavis (license 585)
    Tested by: alecdavis
     
    Review: https://reviewboard.asterisk.org/r/1407/
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@334618 65c4cc65-6c06-0410-ace0-fbb531ad65f3