code: function(token,o){
        /*
          o.troop
          o.scout
          o.reports = [led,..]
          o.start = now
          o.end = then
          o.tail defaults true with no end
        */
  
        o.token = token;
  
        var obj = {
          type:"rest"
          ,args:{ 
            url: '/v1/stats',
            data: o,
            method: 'get' 
          }
        };
        var s = through();
        repipe(s,function(err,last,done){
          if(err && err.code != 'E_MDM') return done(err);
  
          if(last) o.start = last.key;
          getConnection(function(err,con){
            if(err) return done(err);
  
            done(false,con.mdm.createReadStream(obj));
          });
        });
  
        return s; // resume!
      }
docs: stream stats data