Merged revisions 305923 via svnmerge from

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

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  r305923 | rmudgett | 2011-02-02 18:24:40 -0600 (Wed, 02 Feb 2011) | 24 lines
  
  Merged revisions 305889 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.6.2
  
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    r305889 | rmudgett | 2011-02-02 18:15:07 -0600 (Wed, 02 Feb 2011) | 17 lines
    
    Merged revisions 305888 via svnmerge from
    https://origsvn.digium.com/svn/asterisk/branches/1.4
    
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      r305888 | rmudgett | 2011-02-02 18:02:43 -0600 (Wed, 02 Feb 2011) | 8 lines
    
      Minor AST_FRAME_TEXT related issues.
    
      * Include the null terminator in the buffer length.  When the frame is
      queued it is copied.  If the null terminator is not part of the frame
      buffer length, the receiver could see garbage appended onto it.
    
      * Add channel lock protection with ast_sendtext().
    
      * Fixed AMI SendText action ast_sendtext() return value check.
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@305939 65c4cc65-6c06-0410-ace0-fbb531ad65f3