Allow disabling auto init.

Exampe can be found in basicExample.html

Viewer/dist/basicExample.html

@@ -20,6 +20,12 @@
         <babylon model.title="Amazing Rabbit" model.subtitle="BabylonJS" model.thumbnail="https://www.babylonjs.com/img/favicon/apple-icon-144x144.png"
             model.url="https://playground.babylonjs.com/scenes/Rabbit.babylon" camera.behaviors.auto-rotate="0" templates.nav-bar.params.disable-on-fullscreen="true"></babylon>
         <script src="viewer.js"></script>
+        <script>
+            // a simple way of disabling auto init 
+            BabylonViewer.disableInit = true;
+            // Initializing the viewer on specific HTML tags.
+            BabylonViewer.InitTags('babylon');
+        </script>
     </body>
 
 </html>

Viewer/src/index.ts

@@ -14,10 +14,15 @@ import 'babylonjs-materials';
 
 import { InitTags } from './initializer';
 
-// promise polyfill
-global.Promise = require('es6-promise').Promise;
+// promise polyfill, if needed!
+global.Promise = Promise || require('es6-promise').Promise;
 
-InitTags();
+export let disableInit: boolean = false;
+
+setTimeout(() => {
+    if (disableInit) return;
+    InitTags();
+});
 
 // public API for initialization
-export { AbstractViewer, InitTags };
+export { InitTags };

Viewer/webpack.config.js

@@ -11,7 +11,7 @@ module.exports = {
         path: path.resolve(__dirname, 'dist'),
         filename: '[name].js',
         libraryTarget: 'umd',
-        library: 'Viewer3D',
+        library: 'BabylonViewer',
         umdNamedDefine: true,
         devtoolModuleFilenameTemplate: '[absolute-resource-path]'
     },