adjustments to reveal.js initialization flow

js/index.js

@@ -1,21 +1,16 @@
 import Presentation from './reveal.js'
 
-// The Reveal class can be instantiated to run multiple
-// presentations on the same page
-//
-// let rvl = new Reveal( <HTMLElement>, { controls: false } )
-// rvl.initialize()
-// rvl.slide(2)
-window.Reveal = Presentation;
-
-// Simplified way to create a reveal.js instance on
-// a page with only one presentation, makes us backwards
-// compatible with reveal.js pre 4.0
+// Provides a backwards compatible way to initialize
+// reveal.js when there is only one presentation on
+// the page.
 //
 // Reveal.initialize({ controls: false })
-// Revea.slide(2)
-window.Reveal.initialize = options => {
-	window.Reveal = new Presentation( document.querySelector( '.reveal' ), options );
-	window.Reveal.initialize();
-	return new Promise( resolve => window.Reveal.addEventListener( 'ready', resolve ) );
+// Reveal.slide(2)
+window.Reveal = {
+
+	initialize: options => {
+		window.Reveal = new Presentation( document.querySelector( '.reveal' ), options );
+		return window.Reveal.initialize();
+	}
+
 }

js/reveal.js

@@ -153,7 +153,7 @@ export default function( revealElement, options ) {
 		// Load plugins then move on to #start()
 		plugins.load( config.dependencies ).then( start )
 
-		return Reveal;
+		return new Promise( resolve => Reveal.addEventListener( 'ready', resolve ) );
 
 	}