chore(package): update sinon to version 2.3.8 (#657)
chore(package): update sinon to version 2.3.8 (#657)


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