clean up trailing whitespace (closes #197)

js/reveal.js

@@ -2,17 +2,17 @@
  * reveal.js 2.1 r35
  * http://lab.hakim.se/reveal-js
  * MIT licensed
- * 
+ *
  * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
  */
 var Reveal = (function(){
 
 	'use strict';
-	
+
 	var HORIZONTAL_SLIDES_SELECTOR = '.reveal .slides>section',
 		VERTICAL_SLIDES_SELECTOR = '.reveal .slides>section.present>section',
 
-		// Configurations defaults, can be overridden at initialization time 
+		// Configurations defaults, can be overridden at initialization time
 		config = {
 			// Display controls in the bottom right corner
 			controls: true,
@@ -32,7 +32,7 @@ var Reveal = (function(){
 			// Loop the presentation
 			loop: false,
 
-			// Number of milliseconds between automatically proceeding to the 
+			// Number of milliseconds between automatically proceeding to the
 			// next slide, disabled when set to 0, this value can be overwritten
 			// by using a data-autoslide attribute on your slides
 			autoSlide: 0,
@@ -44,7 +44,7 @@ var Reveal = (function(){
 			rollingLinks: true,
 
 			// Transition style (see /css/theme)
-			theme: null, 
+			theme: null,
 
 			// Transition style
 			transition: 'default', // default/cube/page/concave/zoom/linear/none
@@ -65,8 +65,8 @@ var Reveal = (function(){
 		previousSlide,
 		currentSlide,
 
-		// Slides may hold a data-state attribute which we pick up and apply 
-		// as a class to the body. This list contains the combined state of 
+		// Slides may hold a data-state attribute which we pick up and apply
+		// as a class to the body. This list contains the combined state of
 		// all current slides.
 		state = [],
 
@@ -79,13 +79,13 @@ var Reveal = (function(){
 								'msPerspective' in document.body.style ||
 								'OPerspective' in document.body.style ||
 								'perspective' in document.body.style,
-		
+
 		supports2DTransforms =  'WebkitTransform' in document.body.style ||
 								'MozTransform' in document.body.style ||
 								'msTransform' in document.body.style ||
 								'OTransform' in document.body.style ||
 								'transform' in document.body.style,
-		
+
 		// Throttles mouse wheel navigation
 		mouseWheelTimeout = 0,
 
@@ -104,7 +104,7 @@ var Reveal = (function(){
 			handled: false,
 			threshold: 80
 		};
-	
+
 	/**
 	 * Starts up the presentation if the client is capable.
 	 */
@@ -112,7 +112,7 @@ var Reveal = (function(){
 		if( ( !supports2DTransforms && !supports3DTransforms ) ) {
 			document.body.setAttribute( 'class', 'no-transforms' );
 
-			// If the browser doesn't support core features we won't be 
+			// If the browser doesn't support core features we won't be
 			// using JavaScript to control the presentation
 			return;
 		}
@@ -125,12 +125,12 @@ var Reveal = (function(){
 
 		// Loads the dependencies and continues to #start() once done
 		load();
-		
+
 	}
 
 	/**
-	 * Finds and stores references to DOM elements which are 
-	 * required by the presentation. If a required element is 
+	 * Finds and stores references to DOM elements which are
+	 * required by the presentation. If a required element is
 	 * not found, it is created.
 	 */
 	function setupDOM() {
@@ -200,10 +200,10 @@ var Reveal = (function(){
 	}
 
 	/**
-	 * Loads the dependencies of reveal.js. Dependencies are 
-	 * defined via the configuration option 'dependencies' 
-	 * and will be loaded prior to starting/binding reveal.js. 
-	 * Some dependencies may have an 'async' flag, if so they 
+	 * Loads the dependencies of reveal.js. Dependencies are
+	 * defined via the configuration option 'dependencies'
+	 * and will be loaded prior to starting/binding reveal.js.
+	 * Some dependencies may have an 'async' flag, if so they
 	 * will load after reveal.js has been started up.
 	 */
 	function load() {
@@ -233,7 +233,7 @@ var Reveal = (function(){
 		function proceed() {
 			// Load asynchronous scripts
 			head.js.apply( null, scriptsAsync );
-			
+
 			start();
 		}
 
@@ -249,13 +249,13 @@ var Reveal = (function(){
 	}
 
 	/**
-	 * Starts up reveal.js by binding input events and navigating 
+	 * Starts up reveal.js by binding input events and navigating
 	 * to the current URL deeplink if there is one.
 	 */
 	function start() {
 		// Make sure we've got all the DOM elements we need
 		setupDOM();
-		
+
 		// Subscribe to input
 		addEventListeners();
 
@@ -340,7 +340,7 @@ var Reveal = (function(){
 			dom.controlsLeft.addEventListener( 'click', preventAndForward( navigateLeft ), false );
 			dom.controlsRight.addEventListener( 'click', preventAndForward( navigateRight ), false );
 			dom.controlsUp.addEventListener( 'click', preventAndForward( navigateUp ), false );
-			dom.controlsDown.addEventListener( 'click', preventAndForward( navigateDown ), false );	
+			dom.controlsDown.addEventListener( 'click', preventAndForward( navigateDown ), false );
 		}
 	}
 
@@ -357,7 +357,7 @@ var Reveal = (function(){
 		if ( config.progress && dom.progress ) {
 			dom.progress.removeEventListener( 'click', preventAndForward( onProgressClick ), false );
 		}
-		
+
 		if ( config.controls && dom.controls ) {
 			dom.controlsLeft.removeEventListener( 'click', preventAndForward( navigateLeft ), false );
 			dom.controlsRight.removeEventListener( 'click', preventAndForward( navigateRight ), false );
@@ -367,7 +367,7 @@ var Reveal = (function(){
 	}
 
 	/**
-	 * Extend object a with the properties of object b. 
+	 * Extend object a with the properties of object b.
 	 * If there's a conflict, object b takes precedence.
 	 */
 	function extend( a, b ) {
@@ -378,8 +378,8 @@ var Reveal = (function(){
 
 	/**
 	 * Measures the distance in pixels between point a
-	 * and point b. 
-	 * 
+	 * and point b.
+	 *
 	 * @param {Object} a point with x/y properties
 	 * @param {Object} b point with x/y properties
 	 */
@@ -391,10 +391,10 @@ var Reveal = (function(){
 	}
 
 	/**
-	 * Prevents an events defaults behavior calls the 
+	 * Prevents an events defaults behavior calls the
 	 * specified delegate.
-	 * 
-	 * @param {Function} delegate The method to call 
+	 *
+	 * @param {Function} delegate The method to call
 	 * after the wrapper has been executed
 	 */
 	function preventAndForward( delegate ) {
@@ -405,7 +405,7 @@ var Reveal = (function(){
 	}
 
 	/**
-	 * Causes the address bar to hide on mobile devices, 
+	 * Causes the address bar to hide on mobile devices,
 	 * more vertical space ftw.
 	 */
 	function removeAddressBar() {
@@ -415,7 +415,7 @@ var Reveal = (function(){
 	}
 
 	/**
-	 * Dispatches an event of the specified type from the 
+	 * Dispatches an event of the specified type from the
 	 * reveal DOM element.
 	 */
 	function dispatchEvent( type, properties ) {
@@ -434,7 +434,7 @@ var Reveal = (function(){
 
 			for( var i = 0, len = nodes.length; i < len; i++ ) {
 				var node = nodes[i];
-				
+
 				if( node.textContent && !node.querySelector( 'img' ) && ( !node.className || !node.classList.contains( node, 'roll' ) ) ) {
 					node.classList.add( 'roll' );
 					node.innerHTML = '<span data-title="'+ node.text +'">' + node.innerHTML + '</span>';
@@ -444,17 +444,17 @@ var Reveal = (function(){
 	}
 
 	/**
-	 * Displays the overview of slides (quick nav) by 
+	 * Displays the overview of slides (quick nav) by
 	 * scaling down and arranging all slide elements.
-	 * 
-	 * Experimental feature, might be dropped if perf 
+	 *
+	 * Experimental feature, might be dropped if perf
 	 * can't be improved.
 	 */
 	function activateOverview() {
 
 		// Only proceed if enabled in config
 		if( config.overview ) {
-		
+
 			dom.wrapper.classList.add( 'overview' );
 
 			var horizontalSlides = document.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR );
@@ -462,7 +462,7 @@ var Reveal = (function(){
 			for( var i = 0, len1 = horizontalSlides.length; i < len1; i++ ) {
 				var hslide = horizontalSlides[i],
 					htransform = 'translateZ(-2500px) translate(' + ( ( i - indexh ) * 105 ) + '%, 0%)';
-				
+
 				hslide.setAttribute( 'data-index-h', i );
 				hslide.style.display = 'block';
 				hslide.style.WebkitTransform = htransform;
@@ -470,12 +470,12 @@ var Reveal = (function(){
 				hslide.style.msTransform = htransform;
 				hslide.style.OTransform = htransform;
 				hslide.style.transform = htransform;
-			
+
 				if( !hslide.classList.contains( 'stack' ) ) {
 					// Navigate to this slide on click
 					hslide.addEventListener( 'click', onOverviewSlideClicked, true );
 				}
-		
+
 				var verticalSlides = hslide.querySelectorAll( 'section' );
 
 				for( var j = 0, len2 = verticalSlides.length; j < len2; j++ ) {
@@ -494,19 +494,19 @@ var Reveal = (function(){
 					// Navigate to this slide on click
 					vslide.addEventListener( 'click', onOverviewSlideClicked, true );
 				}
-				
+
 			}
 
 		}
 
 	}
-	
+
 	/**
 	 * Exits the slide overview and enters the currently
 	 * active slide.
 	 */
 	function deactivateOverview() {
-		
+
 		// Only proceed if enabled in config
 		if( config.overview ) {
 
@@ -529,15 +529,15 @@ var Reveal = (function(){
 			}
 
 			slide();
-			
+
 		}
 	}
 
 	/**
 	 * Toggles the slide overview mode on and off.
 	 *
-	 * @param {Boolean} override Optional flag which overrides the 
-	 * toggle logic and forcibly sets the desired state. True means 
+	 * @param {Boolean} override Optional flag which overrides the
+	 * toggle logic and forcibly sets the desired state. True means
 	 * overview is open, false means it's closed.
 	 */
 	function toggleOverview( override ) {
@@ -551,7 +551,7 @@ var Reveal = (function(){
 
 	/**
 	 * Checks if the overview is currently active.
-	 * 
+	 *
 	 * @return {Boolean} true if the overview is active,
 	 * false otherwise
 	 */
@@ -561,26 +561,26 @@ var Reveal = (function(){
 
 	/**
 	 * Handling the fullscreen functionality via the fullscreen API
-	 * 
-	 * @see http://fullscreen.spec.whatwg.org/ 
-	 * @see https://developer.mozilla.org/en-US/docs/DOM/Using_fullscreen_mode 
+	 *
+	 * @see http://fullscreen.spec.whatwg.org/
+	 * @see https://developer.mozilla.org/en-US/docs/DOM/Using_fullscreen_mode
 	 */
 	function enterFullscreen() {
 		var element = document.body;
-		
+
 		// Check which implementation is available
 		var requestMethod = element.requestFullScreen ||
 							element.webkitRequestFullScreen ||
 							element.mozRequestFullScreen ||
 							element.msRequestFullScreen;
-		
+
 		if( requestMethod ) {
 			requestMethod.apply( element );
 		}
 	}
 
 	/**
-	 * Enters the paused mode which fades everything on screen to 
+	 * Enters the paused mode which fades everything on screen to
 	 * black.
 	 */
 	function pause() {
@@ -612,11 +612,11 @@ var Reveal = (function(){
 	function isPaused() {
 		return dom.wrapper.classList.contains( 'paused' );
 	}
-	
+
 	/**
-	 * Steps from the current point in the presentation to the 
-	 * slide which matches the specified horizontal and vertical 
-	 * indices. 
+	 * Steps from the current point in the presentation to the
+	 * slide which matches the specified horizontal and vertical
+	 * indices.
 	 *
 	 * @param {int} h Horizontal index of the target slide
 	 * @param {int} v Vertical index of the target slide
@@ -640,7 +640,7 @@ var Reveal = (function(){
 
 		// Apply the new state
 		stateLoop: for( var i = 0, len = state.length; i < len; i++ ) {
-			// Check if this state existed on the previous slide. If it 
+			// Check if this state existed on the previous slide. If it
 			// did, we will avoid adding it repeatedly.
 			for( var j = 0; j < stateBefore.length; j++ ) {
 				if( stateBefore[j] === state[i] ) {
@@ -671,7 +671,7 @@ var Reveal = (function(){
 		}
 
 		updateControls();
-		
+
 		// Update the URL hash after a delay since updating it mid-transition
 		// is likely to cause visual lag
 		clearTimeout( writeURLTimeout );
@@ -691,7 +691,7 @@ var Reveal = (function(){
 		// Dispatch an event if the slide changed
 		if( indexh !== indexhBefore || indexv !== indexvBefore ) {
 			dispatchEvent( 'slidechanged', {
-				'indexh': indexh, 
+				'indexh': indexh,
 				'indexv': indexv,
 				'previousSlide': previousSlide,
 				'currentSlide': currentSlide
@@ -702,8 +702,8 @@ var Reveal = (function(){
 			previousSlide = null;
 		}
 
-		// Solves an edge case where the previous slide maintains the 
-		// 'present' class when navigating between adjacent vertical 
+		// Solves an edge case where the previous slide maintains the
+		// 'present' class when navigating between adjacent vertical
 		// stacks
 		if( previousSlide ) {
 			previousSlide.classList.remove( 'present' );
@@ -713,14 +713,14 @@ var Reveal = (function(){
 	/**
 	 * Updates one dimension of slides by showing the slide
 	 * with the specified index.
-	 * 
+	 *
 	 * @param {String} selector A CSS selector that will fetch
 	 * the group of slides we are working with
 	 * @param {Number} index The index of the slide that should be
 	 * shown
-	 * 
+	 *
 	 * @return {Number} The index of the slide that is now shown,
-	 * might differ from the passed in index if it was out of 
+	 * might differ from the passed in index if it was out of
 	 * bounds.
 	 */
 	function updateSlides( selector, index ) {
@@ -728,7 +728,7 @@ var Reveal = (function(){
 		// an array
 		var slides = Array.prototype.slice.call( document.querySelectorAll( selector ) ),
 			slidesLength = slides.length;
-		
+
 		if( slidesLength ) {
 
 			// Should the index loop?
@@ -739,14 +739,14 @@ var Reveal = (function(){
 					index = slidesLength + index;
 				}
 			}
-			
+
 			// Enforce max and minimum index bounds
 			index = Math.max( Math.min( index, slidesLength - 1 ), 0 );
-			
+
 			for( var i = 0; i < slidesLength; i++ ) {
 				var element = slides[i];
 
-				// Optimization; hide all slides that are three or more steps 
+				// Optimization; hide all slides that are three or more steps
 				// away from the present slide
 				if( isOverviewActive() === false ) {
 					// The distance loops so that it measures 1 between the first
@@ -785,7 +785,7 @@ var Reveal = (function(){
 				state = state.concat( slideState.split( ' ' ) );
 			}
 
-			// If this slide has a data-autoslide attribtue associated use this as 
+			// If this slide has a data-autoslide attribtue associated use this as
 			// autoSlide value otherwise use the global configured time
 			var slideAutoSlide = slides[index].getAttribute( 'data-autoslide' );
 			if( slideAutoSlide ) {
@@ -796,13 +796,13 @@ var Reveal = (function(){
 
 		}
 		else {
-			// Since there are no slides we can't be anywhere beyond the 
+			// Since there are no slides we can't be anywhere beyond the
 			// zeroth index
 			index = 0;
 		}
-		
+
 		return index;
-		
+
 	}
 
 	/**
@@ -810,7 +810,7 @@ var Reveal = (function(){
 	 */
 	function updateControls() {
 		if ( config.controls && dom.controls ) {
-			
+
 			var routes = availableRoutes();
 
 			// Remove the 'enabled' class from all directions
@@ -829,7 +829,7 @@ var Reveal = (function(){
 
 	/**
 	 * Determine what available routes there are for navigation.
-	 * 
+	 *
 	 * @return {Object} containing four booleans: left/right/up/down
 	 */
 	function availableRoutes() {
@@ -843,7 +843,7 @@ var Reveal = (function(){
 			down: indexv < verticalSlides.length - 1
 		};
 	}
-	
+
 	/**
 	 * Reads the current URL (hash) and navigates accordingly.
 	 */
@@ -854,7 +854,7 @@ var Reveal = (function(){
 		var bits = hash.slice( 2 ).split( '/' ),
 			name = hash.replace( /#|\//gi, '' );
 
-		// If the first bit is invalid and there is a name we can 
+		// If the first bit is invalid and there is a name we can
 		// assume that this is a named link
 		if( isNaN( parseInt( bits[0], 10 ) ) && name.length ) {
 			// Find the slide with the specified name
@@ -878,32 +878,32 @@ var Reveal = (function(){
 			slide( h, v );
 		}
 	}
-	
+
 	/**
 	 * Updates the page URL (hash) to reflect the current
-	 * state. 
+	 * state.
 	 */
 	function writeURL() {
 		if( config.history ) {
 			var url = '/';
-			
+
 			// Only include the minimum possible number of components in
 			// the URL
 			if( indexh > 0 || indexv > 0 ) url += indexh;
 			if( indexv > 0 ) url += '/' + indexv;
-			
+
 			window.location.hash = url;
 		}
 	}
 
 	/**
-	 * Retrieves the h/v location of the current, or specified, 
+	 * Retrieves the h/v location of the current, or specified,
 	 * slide.
-	 * 
-	 * @param {HTMLElement} slide If specified, the returned 
-	 * index will be for this slide rather than the currently 
+	 *
+	 * @param {HTMLElement} slide If specified, the returned
+	 * index will be for this slide rather than the currently
 	 * active one
-	 * 
+	 *
 	 * @return {Object} { h: <int>, v: <int> }
 	 */
 	function getIndices( slide ) {
@@ -933,7 +933,7 @@ var Reveal = (function(){
 
 	/**
 	 * Navigate to the next slide fragment.
-	 * 
+	 *
 	 * @return {Boolean} true if there was a next fragment,
 	 * false otherwise
 	 */
@@ -966,7 +966,7 @@ var Reveal = (function(){
 
 	/**
 	 * Navigate to the previous slide fragment.
-	 * 
+	 *
 	 * @return {Boolean} true if there was a previous fragment,
 	 * false otherwise
 	 */
@@ -993,7 +993,7 @@ var Reveal = (function(){
 				return true;
 			}
 		}
-		
+
 		return false;
 	}
 
@@ -1008,7 +1008,7 @@ var Reveal = (function(){
 			autoSlideTimeout = setTimeout( navigateNext, autoSlide );
 		}
 	}
-	
+
 	function navigateLeft() {
 		// Prioritize hiding fragments
 		if( isOverviewActive() || previousFragment() === false ) {
@@ -1071,7 +1071,7 @@ var Reveal = (function(){
 			availableRoutes().down ? navigateDown() : navigateRight();
 		}
 
-		// If auto-sliding is enabled we need to cue up 
+		// If auto-sliding is enabled we need to cue up
 		// another timeout
 		cueAutoSlide();
 	}
@@ -1084,11 +1084,11 @@ var Reveal = (function(){
 
 	/**
 	 * Handler for the document level 'keydown' event.
-	 * 
+	 *
 	 * @param {Object} event
 	 */
 	function onDocumentKeyDown( event ) {
-		// Disregard the event if the target is editable or a 
+		// Disregard the event if the target is editable or a
 		// modifier is present
 		if ( document.querySelector( ':focus' ) !== null || event.shiftKey || event.altKey || event.ctrlKey || event.metaKey ) return;
 
@@ -1096,7 +1096,7 @@ var Reveal = (function(){
 
 		switch( event.keyCode ) {
 			// p, page up
-			case 80: case 33: navigatePrev(); break; 
+			case 80: case 33: navigatePrev(); break;
 			// n, page down
 			case 78: case 34: navigateNext(); break;
 			// h, left
@@ -1123,18 +1123,18 @@ var Reveal = (function(){
 				triggered = false;
 		}
 
-		// If the input resulted in a triggered action we should prevent 
+		// If the input resulted in a triggered action we should prevent
 		// the browsers default behavior
 		if( triggered ) {
 			event.preventDefault();
 		}
 		else if ( event.keyCode === 27 && supports3DTransforms ) {
 			toggleOverview();
-	
+
 			event.preventDefault();
 		}
 
-		// If auto-sliding is enabled we need to cue up 
+		// If auto-sliding is enabled we need to cue up
 		// another timeout
 		cueAutoSlide();
 
@@ -1149,7 +1149,7 @@ var Reveal = (function(){
 		touch.startY = event.touches[0].clientY;
 		touch.startCount = event.touches.length;
 
-		// If there's two touches we need to memorize the distance 
+		// If there's two touches we need to memorize the distance
 		// between those two points to detect pinching
 		if( event.touches.length === 2 && config.overview ) {
 			touch.startSpan = distanceBetween( {
@@ -1161,7 +1161,7 @@ var Reveal = (function(){
 			} );
 		}
 	}
-	
+
 	/**
 	 * Handler for the document level 'touchmove' event.
 	 */
@@ -1171,7 +1171,7 @@ var Reveal = (function(){
 			var currentX = event.touches[0].clientX;
 			var currentY = event.touches[0].clientY;
 
-			// If the touch started off with two points and still has 
+			// If the touch started off with two points and still has
 			// two active touches; test for the pinch gesture
 			if( event.touches.length === 2 && touch.startCount === 2 && config.overview ) {
 
@@ -1184,7 +1184,7 @@ var Reveal = (function(){
 					y: touch.startY
 				} );
 
-				// If the span is larger than the desire amount we've got 
+				// If the span is larger than the desire amount we've got
 				// ourselves a pinch
 				if( Math.abs( touch.startSpan - currentSpan ) > touch.threshold ) {
 					touch.handled = true;
@@ -1209,15 +1209,15 @@ var Reveal = (function(){
 				if( deltaX > touch.threshold && Math.abs( deltaX ) > Math.abs( deltaY ) ) {
 					touch.handled = true;
 					navigateLeft();
-				} 
+				}
 				else if( deltaX < -touch.threshold && Math.abs( deltaX ) > Math.abs( deltaY ) ) {
 					touch.handled = true;
 					navigateRight();
-				} 
+				}
 				else if( deltaY > touch.threshold ) {
 					touch.handled = true;
 					navigateUp();
-				} 
+				}
 				else if( deltaY < -touch.threshold ) {
 					touch.handled = true;
 					navigateDown();
@@ -1227,7 +1227,7 @@ var Reveal = (function(){
 
 			}
 		}
-		// There's a bug with swiping on some Android devices unless 
+		// There's a bug with swiping on some Android devices unless
 		// the default action is always prevented
 		else if( navigator.userAgent.match( /android/gi ) ) {
 			event.preventDefault();
@@ -1242,7 +1242,7 @@ var Reveal = (function(){
 	}
 
 	/**
-	 * Handles mouse wheel scrolling, throttled to avoid skipping 
+	 * Handles mouse wheel scrolling, throttled to avoid skipping
 	 * multiple slides.
 	 */
 	function onDocumentMouseScroll( event ){
@@ -1260,7 +1260,7 @@ var Reveal = (function(){
 	}
 
 	/**
-	 * Clicking on the progress bar results in a navigation to the 
+	 * Clicking on the progress bar results in a navigation to the
 	 * closest approximate horizontal slide using this equation:
 	 *
 	 * ( clickX / presentationWidth ) * numberOfSlides
@@ -1271,10 +1271,10 @@ var Reveal = (function(){
 
 		slide( slideIndex );
 	}
-	
+
 	/**
 	 * Handler for the window level 'hashchange' event.
-	 * 
+	 *
 	 * @param {Object} event
 	 */
 	function onWindowHashChange( event ) {
@@ -1285,7 +1285,7 @@ var Reveal = (function(){
 	 * Invoked when a slide is and we're in the overview.
 	 */
 	function onOverviewSlideClicked( event ) {
-		// TODO There's a bug here where the event listeners are not 
+		// TODO There's a bug here where the event listeners are not
 		// removed after deactivating the overview.
 		if( isOverviewActive() ) {
 			event.preventDefault();
@@ -1299,7 +1299,7 @@ var Reveal = (function(){
 		}
 	}
 
-	
+
 	// --------------------------------------------------------------------//
 	// ------------------------------- API --------------------------------//
 	// --------------------------------------------------------------------//
@@ -1307,7 +1307,7 @@ var Reveal = (function(){
 
 	return {
 		initialize: initialize,
-		
+
 		// Navigation methods
 		slide: slide,
 		left: navigateLeft,
@@ -1369,5 +1369,5 @@ var Reveal = (function(){
 			}
 		}
 	};
-	
+
 })();

plugin/notes/notes.js

@@ -39,7 +39,7 @@ var RevealNotes = (function() {
 			notesPopup.postMessage( JSON.stringify( slideData ), '*' );
 		}
 
-		// The main presentation is kept in sync when navigating the 
+		// The main presentation is kept in sync when navigating the
 		// note slides so that the popup may be used as a remote
 		window.addEventListener( 'message', function( event ) {
 			var data = JSON.parse( event.data );
@@ -60,7 +60,7 @@ var RevealNotes = (function() {
 
 	// Open the notes when the 's' key is hit
 	document.addEventListener( 'keydown', function( event ) {
-		// Disregard the event if the target is editable or a 
+		// Disregard the event if the target is editable or a
 		// modifier is present
 		if ( document.querySelector( ':focus' ) !== null || event.shiftKey || event.altKey || event.ctrlKey || event.metaKey ) return;