Made the call of std:pow unambiguos in NgramModel.cpp.
Made the call of std:pow unambiguos in NgramModel.cpp.

zhoususheng/mitlm,rezhajulio/mitlm,raheelqader/mitlm,jiaxibei2008/mitlm,jiaxibei2008/mitlm,eddieantonio/mitlm,tectronics/mitlm,mitlm/mitlm,mitlm/mitlm,askender/mitlm,askender/mitlm,jiaxibei2008/mitlm,mitlm/mitlm,askender/mitlm,raheelqader/mitlm,rezhajulio/mitlm,emawind84/mitlm,eddieantonio/mitlm,eddieantonio/mitlm,tectronics/mitlm,zhoususheng/mitlm,andrewphamvn/mitlm,andrewphamvn/mitlm,emawind84/mitlm,raheelqader/mitlm,andrewphamvn/mitlm,jbeard4/mitlm,rezhajulio/mitlm,tectronics/mitlm,jbeard4/mitlm,jbeard4/mitlm,zhoususheng/mitlm,emawind84/mitlm