lib/countly-bulk.js
function getMsTimestamp(){
        var ts = new Date().getTime();
        if(lastMsTs >= ts){
            lastMsTs++;
        }
        else{
            lastMsTs = ts;
        }
        return lastMsTs;
    }
function getMsTimestamp(){
        var ts = new Date().getTime();
        if(lastMsTs >= ts){
            lastMsTs++;
        }
        else{
            lastMsTs = ts;
        }
        return lastMsTs;
    }
get unique timestamp in miliseconds