js/roman-numerals exports
add use strict to js/binary example
change name of the exercise file to require
add js/prime-factors
add js/raindrops
js/allergies module.exports
js/strain module.exports
add js/atbash-cipher
js/accumulate rename exercise file
js/crypto-square module.exports
lint fixes
add
js/trinary rename exercise file
add js/sieve
js/luhn module.exports
js/secret-handshake module.exports
js/wordy rename exercise file
lint fixes
js/hexadecimal module.exports
js/binary-search-tree add