Fixed TRT calibration crash

The TRT calibration crashed on the TMS system. This was fixed by skipping the read of a character string in the beginning of the input file to the tool TRTCalibrator. The string served to tell whether the file content is in compressed binary format or ROOT format. However, the ROOT format has never been used, so the entire block dealing with this format was deleted in this tool. At the same time I changed all msg(MSG::INFO) and even a couple of std::cout to ATH_MSG_INFO. The full calibration chain has been tested with these changes.

Peter Hansen (@hansenph ) - sorry I forgot I was logged in as attrtcal when making the push and request. Watcher: @serodrig