add max size for 'realscale' data
add max size for 'realscale' data

jsenellart-systran/OpenNMT,da03/OpenNMT,da03/OpenNMT,OpenNMT/OpenNMT,monsieurzhang/OpenNMT,jungikim/OpenNMT,jsenellart-systran/OpenNMT,jsenellart/OpenNMT,jsenellart/OpenNMT,jsenellart-systran/OpenNMT,jungikim/OpenNMT,monsieurzhang/OpenNMT,jungikim/OpenNMT,monsieurzhang/OpenNMT,OpenNMT/OpenNMT,jsenellart/OpenNMT,da03/OpenNMT,OpenNMT/OpenNMT