Merged revisions 157104 via svnmerge from

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

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  r157104 | kpfleming | 2008-11-15 19:00:32 +0100 (Sat, 15 Nov 2008) | 13 lines
  
  major update to doxygen configuration file:
  
  1) update to doxygen 1.5.x style file, as used in trunk
  
  2) tell doxygen where are header files are, so include-file processing can be done
  
  3) make all macros that are used to define variables/functions be expanded, so that doxygen will properly document the resulting variable/function
  
  4) make all macros that are used to provide the contents of a variable (structure) be expanded, so that doxygen will be able to document the resulting fields
  
  5) suppress compiler attributes (__attribute__(xxx)) from being seen by doxygen, so it will properly match up function definition and usage (for an example of th effect of this, look at the doxygen docs for ast_log() from before and afte this commit)
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@157105 65c4cc65-6c06-0410-ace0-fbb531ad65f3