Adding mapbox-gl branch

mapbox-gl/examples/button-title.js

@@ -0,0 +1,22 @@
+var map = new ol.Map({
+  layers: [
+    new ol.layer.Tile({
+      source: new ol.source.OSM()
+    })
+  ],
+  renderer: exampleNS.getRendererFromQueryString(),
+  target: 'map',
+  view: new ol.View({
+    center: [-8730000, 5930000],
+    rotation: Math.PI / 5,
+    zoom: 8
+  })
+});
+
+
+$('.ol-zoom-in, .ol-zoom-out').tooltip({
+  placement: 'right'
+});
+$('.ol-rotate-reset, .ol-attribution button[title]').tooltip({
+  placement: 'left'
+});