upgrade npm before installing to support `^` semver bs
upgrade npm before installing to support `^` semver bs

umayr/hbs,flenter/hbs,PeterPanen/hbs,sn1ckers/hbs,AlexanderMazaletskiy/hbs,gnowoel/hbs,donpark/hbs,cgvarela/hbs,PeterPanen/hbs,umayr/hbs,flenter/hbs,donpark/hbs,gnowoel/hbs,AlexanderMazaletskiy/hbs,sn1ckers/hbs,cgvarela/hbs