Modified loading of the skybox images (#12)

Author: petrsloup

src/app.js

@@ -130,8 +130,9 @@ weapi.App = function(divid, opt_options) {
     this.scene.skyAtmosphere = new Cesium.SkyAtmosphere();
   }
   if (options['sky']) {
-    //TODO: solve resources
-    var skyBoxBaseUrl = (goog.DEBUG ? '../deploy/' : '') + 'SkyBox/';
+    var baseUrl = goog.isString(options['sky']) ?
+                  options['sky'] : window['CESIUM_BASE_URL'];
+    var skyBoxBaseUrl = (goog.DEBUG ? '../deploy/' : baseUrl) + 'SkyBox/';
     this.scene.skyBox = new Cesium.SkyBox({
       'sources': {
         'positiveX' : skyBoxBaseUrl + 'px.jpg',