* src/gdcmDocument.cxx : fix bug... test if the fp is opened to use it

   * src/gdcmDocument.cxx : fix bug... test if the fp is opened to use it
   * src/gdcmPixelConvert.cxx : calculate the image size when while the grab of
     the header.
   * src/gdcmFile.[h|cxx] : remove PixelRead and ImageDataSizeRaw variables and
     some corresponding methods. Write correctly the file and check before
     write
   * Test/TestCopyDicom.cxx, TestReadWriteReadCompare.cxx,
     TestAllReadCompareDicom.cxx : pass the write of images to RGB and test
     is now on RGB datas (as before my last commit
   * Example/PrintHeader.cxx, PrintFile.cxx : repad files.
   -- BeNours