C++11 for icc and enable more warnings
C++11 for icc and enable more warnings

shurikasa/CMake,rballester/vmmlib,shurikasa/CMake,biddisco/CMake,jafyvilla/CMake,ptoharia/CMake,jafyvilla/CMake,tribal-tec/vmmlib,rballester/vmmlib,biddisco/CMake,jafyvilla/CMake,hernando/vmmlib,shuaibarshad/KAUST-CMake,BlueBrain/Tuvok,hernando/vmmlib,shuaibarshad/KAUST-CMake,hernando/vmmlib,shuaibarshad/KAUST-CMake,shurikasa/CMake,ptoharia/CMake,ptoharia/CMake,rballester/vmmlib,jafyvilla/CMake,ptoharia/CMake,shuaibarshad/KAUST-CMake,biddisco/CMake,BlueBrain/Tuvok,biddisco/CMake,shurikasa/CMake,BlueBrain/Tuvok