chore(package): update eslint to version 3.7.1
chore(package): update eslint to version 3.7.1

https://greenkeeper.io/
ssmlee04/docker-user-module,KunalKapadia/express-mongoose-es6-rest-api,wen911119/my-node-api,maratgaip/MusicApi,ssmlee04/docker-user-module,sebasalvarado/dementia-hacks-api,kenzanboo/mail,rcaracaus/pa11y-api,KunalKapadia/express-mongoose-es6-rest-api