title: mapbox.js 1.6.2 - change tileset on zoom level
body: <p>var map = L.mapbox.map('map', 'wmarci.i6n42nl5',</p>
  
  <p>{
      center: new L.LatLng(38.8929,-100.0252),
      zoom: 4,
      minZoom: 0,
      maxZoom: 18,
      layers: [
          L.tileLayer('wmarci.k300ifal', {
          maxZoom: 13,
          minZoom: 5,
      })
      ]
  });</p>
  
  <p>This doesn't seem to be working.... ideas? Am I calling the tilelayer wrong?</p>