Enable C++11 on Intel compiler
Enable C++11 on Intel compiler

dondieselkopf/amgcl,huahbo/amgcl,ddemidov/amgcl,huahbo/amgcl,huahbo/amgcl,ddemidov/amgcl,ddemidov/amgcl,ddemidov/amgcl,dondieselkopf/amgcl,dondieselkopf/amgcl