Adapt pyamgcl version to PEP 386
Adapt pyamgcl version to PEP 386

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