* CLEANUP_ROUND for gdcmPixelConvert:

 * CLEANUP_ROUND for gdcmPixelConvert:
    - src/gdcmFile.cxx, gdcmFile.h, gdcmHeader.cxx, gdcmHeader.h clean up
    - src/gdcmPixelStuff[h|cxx] removed
    - src/gdcmPixelConvert[h|cxx] added. Preparatory work included.
    - src/CMakeLists.txt changed accordingly
  * GDCMHOME clean up:
    - MANIFEST.in, WrapSwig.py, WrapVTK.py, distutilsWrapping.py and
      gdcmVersion.py moved to newly created ATTIC related
      gdcmPython/SetupOldies/ directory.
  * Autotools clean up:
    - */*/Makefile.am removed AT EXCEPTION of gdcmPython/Makefile.am
    - autogen.sh configure.in acinclude.m4 python.m4 removed