chore(package): update moment to version 2.18.1
chore(package): update moment to version 2.18.1

https://greenkeeper.io/
afz/fuelux,afz/fuelux,cormacmccarthy/fuelux,vernak2539/fuelux,vernak2539/fuelux,ExactTarget/fuelux,futuremint/fuelux,cormacmccarthy/fuelux,futuremint/fuelux,ExactTarget/fuelux