fix config file loading
fix config file loading

Convert values to their original type: boolean, number or string.

da03/OpenNMT,jsenellart/OpenNMT,cservan/OpenNMT_scores_0.2.0,OpenNMT/OpenNMT,monsieurzhang/OpenNMT,jsenellart-systran/OpenNMT,monsieurzhang/OpenNMT,jungikim/OpenNMT,jsenellart/OpenNMT,srush/OpenNMT,jsenellart-systran/OpenNMT,jsenellart/OpenNMT,OpenNMT/OpenNMT,jsenellart-systran/OpenNMT,da03/OpenNMT,OpenNMT/OpenNMT,jungikim/OpenNMT,da03/OpenNMT,jungikim/OpenNMT,monsieurzhang/OpenNMT