wx-promise-api v1.0.3

#Introduction This project make eache wechat xiao cheng xu function return a promise.Now you write like as blew;

wx.getStorageInfo().then(function(res){
        console.log("then:success",res)   
    },function (error) {
        console.log(error)   
    }).then(function() {
        console.log('complete')
    })

    wx.getStorageInfoSync().then(function(res){
        console.log('sync:',res)
    },function(error) {
        
    }).then(function() {
        console.log('complete')
    }) 

##How to use init in app.js,in onLaunch function,add wrapper.wrapper() as early as you can.