chore(package): update typescript to version 2.4.2 (#672)
chore(package): update typescript to version 2.4.2 (#672)


wechaty/wechaty,Chatie/wechaty,lijiarui/wechaty,mukaiu/wechaty,lijiarui/wechaty,binsee/wechaty,mukaiu/wechaty,zixia/wechaty,binsee/wechaty,binsee/wechaty,zixia/wechaty,wechaty/wechaty,Chatie/wechaty,Chatie/wechaty,wechaty/wechaty,mukaiu/wechaty