adds enumerate == and postfix ++
adds enumerate == and postfix ++

tempbottle/cppitertools,jkhoogland/cppitertools,jkhoogland/cppitertools,tempbottle/cppitertools,jkhoogland/cppitertools,tempbottle/cppitertools,ryanhaining/cppitertools,ryanhaining/cppitertools,ryanhaining/cppitertools