Refactor build system and layout

skeleton.js

@@ -0,0 +1,20 @@
+goog.require('goog.math.Coordinate');
+goog.require('goog.object');
+goog.require('ol.createMap');
+goog.require('ol.tilelayer.createOpenStreetMap');
+
+
+var target = /** @type {!HTMLDivElement} */ document.getElementById('map');
+var map = ol.createMap(target);
+
+var layer = ol.tilelayer.createOpenStreetMap({
+  'opacity': 0.5
+});
+map.getLayers().push(layer);
+
+var resolutions = layer.getStore().getResolutions();
+map.setCenter(new goog.math.Coordinate(0, 0));
+map.setResolution(resolutions[0]);
+
+goog.exportSymbol('layer', layer);
+goog.exportSymbol('map', map);