Fixed mistake

dist/vizicities.js

@@ -7991,7 +7991,7 @@ return /******/ (function(modules) { // webpackBootstrap
 	    value: function destroy() {
 	      // Delete reference to layer and world
 	      this._layer = null;
-	      thos._world = null;
+	      this._world = null;
 	
 	      // Delete location references
 	      this._boundsLatLon = null;

examples/basic/main.js

@@ -15,7 +15,7 @@ var topoJSONTileLayer = VIZI.TopoJSONTileLayer('https://vector.mapzen.com/osm/bu
   style: function(feature) {
     return {
       // color: (feature.properties.area > 10000) ? '#ff0000' : '#0000ff'
-      color: '#cccccc'
+      color: '#ffffff'
     };
   },
   // filter: function(feature) {

src/layer/tile/Tile.js

@@ -67,7 +67,7 @@ class Tile {
   destroy() {
     // Delete reference to layer and world
     this._layer = null;
-    thos._world = null;
+    this._world = null;
 
     // Delete location references
     this._boundsLatLon = null;