feat(power-assert): ship npm module with built bundle for browsers
feat(power-assert): ship npm module with built bundle for browsers

for those who are using npm as front-end package manager

twada/power-assert,power-assert-js/power-assert,saneyuki/power-assert,power-assert-js/power-assert,yagitoshiro/power-assert,falsandtru/power-assert,twada/power-assert,saneyuki/power-assert,falsandtru/power-assert,yagitoshiro/power-assert