XMLReaderData() now check for error.

XMLReader.cpp

         ifstream CFGFile(FileName.c_str());                                     // Open the file.
         CFGFile.seekg(0,ios::end);                                              // Seek to the end
         myBufferSize = CFGFile.tellg();                                         // to find out what size it is.
+	if (myBufferSize < 0)
+	  throw;
         myDataBuffer = new char[myBufferSize + 1];                              // Make a new buffer the right size,
                                                                                 // including null byte at end.
         CFGFile.seekg(0,ios::beg);                                              // Seek to the beginning and