Merged revisions 264248 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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  r264248 | tilghman | 2010-05-19 12:41:29 -0500 (Wed, 19 May 2010) | 17 lines
  
  Internal timing is now on by default, if you're using DAHDI 2.3 or above.
  
  The reason for ensuring DAHDI 2.3 or above is that this version ensures that
  a timer is always available, whereas in previous versions, it was possible
  for DAHDI to be loaded, but have no drivers to actually generate timing.  If
  internal_timing was turned on in this circumstance, a complete lack of audio
  would result.  This is the reason why internal_timing was not on by default.
  However, now that DAHDI ensures the availability of a timer, there is no
  reason for this setting to be off (and in fact, it solves a great many initial
  user problems).
  
  (closes issue #15932)
   Reported by: dimas
   Patches: 
         20100519__issue15932.diff.txt uploaded by tilghman (license 14)
   Tested by: tilghman
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@264249 65c4cc65-6c06-0410-ace0-fbb531ad65f3