upgrade to reveal.js-3.3.0
diff --git a/inst/reveal.js-3.3.0/test/examples/assets/image1.png b/inst/reveal.js-3.3.0/test/examples/assets/image1.png
new file mode 100644
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--- /dev/null
+++ b/inst/reveal.js-3.3.0/test/examples/assets/image1.png
Binary files differ
diff --git a/inst/reveal.js-3.3.0/test/examples/assets/image2.png b/inst/reveal.js-3.3.0/test/examples/assets/image2.png
new file mode 100644
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--- /dev/null
+++ b/inst/reveal.js-3.3.0/test/examples/assets/image2.png
Binary files differ
diff --git a/inst/reveal.js-3.3.0/test/examples/barebones.html b/inst/reveal.js-3.3.0/test/examples/barebones.html
new file mode 100644
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+++ b/inst/reveal.js-3.3.0/test/examples/barebones.html
@@ -0,0 +1,41 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Barebones</title>
+
+		<link rel="stylesheet" href="../../css/reveal.css">
+	</head>
+
+	<body>
+
+		<div class="reveal">
+
+			<div class="slides">
+
+				<section>
+					<h2>Barebones Presentation</h2>
+					<p>This example contains the bare minimum includes and markup required to run a reveal.js presentation.</p>
+				</section>
+
+				<section>
+					<h2>No Theme</h2>
+					<p>There's no theme included, so it will fall back on browser defaults.</p>
+				</section>
+
+			</div>
+
+		</div>
+
+		<script src="../../js/reveal.js"></script>
+
+		<script>
+
+			Reveal.initialize();
+
+		</script>
+
+	</body>
+</html>
diff --git a/inst/reveal.js-3.3.0/test/examples/embedded-media.html b/inst/reveal.js-3.3.0/test/examples/embedded-media.html
new file mode 100644
index 0000000..bbad4be
--- /dev/null
+++ b/inst/reveal.js-3.3.0/test/examples/embedded-media.html
@@ -0,0 +1,49 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Embedded Media</title>
+
+		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+
+		<link rel="stylesheet" href="../../css/reveal.css">
+		<link rel="stylesheet" href="../../css/theme/default.css" id="theme">
+	</head>
+
+	<body>
+
+		<div class="reveal">
+
+			<div class="slides">
+
+				<section>
+					<h2>Embedded Media Test</h2>
+				</section>
+
+				<section>
+					<iframe data-autoplay width="420" height="345" src="http://www.youtube.com/embed/l3RQZ4mcr1c"></iframe>
+				</section>
+
+				<section>
+					<h2>Empty Slide</h2>
+				</section>
+
+			</div>
+
+		</div>
+
+		<script src="../../lib/js/head.min.js"></script>
+		<script src="../../js/reveal.js"></script>
+
+		<script>
+
+			Reveal.initialize({
+				transition: 'linear'
+			});
+
+		</script>
+
+	</body>
+</html>
diff --git a/inst/reveal.js-3.3.0/test/examples/math.html b/inst/reveal.js-3.3.0/test/examples/math.html
new file mode 100644
index 0000000..1b80e03
--- /dev/null
+++ b/inst/reveal.js-3.3.0/test/examples/math.html
@@ -0,0 +1,185 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Math Plugin</title>
+
+		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+
+		<link rel="stylesheet" href="../../css/reveal.css">
+		<link rel="stylesheet" href="../../css/theme/night.css" id="theme">
+	</head>
+
+	<body>
+
+		<div class="reveal">
+
+			<div class="slides">
+
+				<section>
+					<h2>reveal.js Math Plugin</h2>
+					<p>A thin wrapper for MathJax</p>
+				</section>
+
+				<section>
+					<h3>The Lorenz Equations</h3>
+
+					\[\begin{aligned}
+					\dot{x} &amp; = \sigma(y-x) \\
+					\dot{y} &amp; = \rho x - y - xz \\
+					\dot{z} &amp; = -\beta z + xy
+					\end{aligned} \]
+				</section>
+
+				<section>
+					<h3>The Cauchy-Schwarz Inequality</h3>
+
+					<script type="math/tex; mode=display">
+						\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)
+					</script>
+				</section>
+
+				<section>
+					<h3>A Cross Product Formula</h3>
+
+					\[\mathbf{V}_1 \times \mathbf{V}_2 =  \begin{vmatrix}
+					\mathbf{i} &amp; \mathbf{j} &amp; \mathbf{k} \\
+					\frac{\partial X}{\partial u} &amp;  \frac{\partial Y}{\partial u} &amp; 0 \\
+					\frac{\partial X}{\partial v} &amp;  \frac{\partial Y}{\partial v} &amp; 0
+					\end{vmatrix}  \]
+				</section>
+
+				<section>
+					<h3>The probability of getting \(k\) heads when flipping \(n\) coins is</h3>
+
+					\[P(E)   = {n \choose k} p^k (1-p)^{ n-k} \]
+				</section>
+
+				<section>
+					<h3>An Identity of Ramanujan</h3>
+
+					\[ \frac{1}{\Bigl(\sqrt{\phi \sqrt{5}}-\phi\Bigr) e^{\frac25 \pi}} =
+					1+\frac{e^{-2\pi}} {1+\frac{e^{-4\pi}} {1+\frac{e^{-6\pi}}
+					{1+\frac{e^{-8\pi}} {1+\ldots} } } } \]
+				</section>
+
+				<section>
+					<h3>A Rogers-Ramanujan Identity</h3>
+
+					\[  1 +  \frac{q^2}{(1-q)}+\frac{q^6}{(1-q)(1-q^2)}+\cdots =
+					\prod_{j=0}^{\infty}\frac{1}{(1-q^{5j+2})(1-q^{5j+3})}\]
+				</section>
+
+				<section>
+					<h3>Maxwell&#8217;s Equations</h3>
+
+					\[  \begin{aligned}
+					\nabla \times \vec{\mathbf{B}} -\, \frac1c\, \frac{\partial\vec{\mathbf{E}}}{\partial t} &amp; = \frac{4\pi}{c}\vec{\mathbf{j}} \\   \nabla \cdot \vec{\mathbf{E}} &amp; = 4 \pi \rho \\
+					\nabla \times \vec{\mathbf{E}}\, +\, \frac1c\, \frac{\partial\vec{\mathbf{B}}}{\partial t} &amp; = \vec{\mathbf{0}} \\
+					\nabla \cdot \vec{\mathbf{B}} &amp; = 0 \end{aligned}
+					\]
+				</section>
+
+				<section>
+					<section>
+						<h3>The Lorenz Equations</h3>
+
+						<div class="fragment">
+							\[\begin{aligned}
+							\dot{x} &amp; = \sigma(y-x) \\
+							\dot{y} &amp; = \rho x - y - xz \\
+							\dot{z} &amp; = -\beta z + xy
+							\end{aligned} \]
+						</div>
+					</section>
+
+					<section>
+						<h3>The Cauchy-Schwarz Inequality</h3>
+
+						<div class="fragment">
+							\[ \left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right) \]
+						</div>
+					</section>
+
+					<section>
+						<h3>A Cross Product Formula</h3>
+
+						<div class="fragment">
+							\[\mathbf{V}_1 \times \mathbf{V}_2 =  \begin{vmatrix}
+							\mathbf{i} &amp; \mathbf{j} &amp; \mathbf{k} \\
+							\frac{\partial X}{\partial u} &amp;  \frac{\partial Y}{\partial u} &amp; 0 \\
+							\frac{\partial X}{\partial v} &amp;  \frac{\partial Y}{\partial v} &amp; 0
+							\end{vmatrix}  \]
+						</div>
+					</section>
+
+					<section>
+						<h3>The probability of getting \(k\) heads when flipping \(n\) coins is</h3>
+
+						<div class="fragment">
+							\[P(E)   = {n \choose k} p^k (1-p)^{ n-k} \]
+						</div>
+					</section>
+
+					<section>
+						<h3>An Identity of Ramanujan</h3>
+
+						<div class="fragment">
+							\[ \frac{1}{\Bigl(\sqrt{\phi \sqrt{5}}-\phi\Bigr) e^{\frac25 \pi}} =
+							1+\frac{e^{-2\pi}} {1+\frac{e^{-4\pi}} {1+\frac{e^{-6\pi}}
+							{1+\frac{e^{-8\pi}} {1+\ldots} } } } \]
+						</div>
+					</section>
+
+					<section>
+						<h3>A Rogers-Ramanujan Identity</h3>
+
+						<div class="fragment">
+							\[  1 +  \frac{q^2}{(1-q)}+\frac{q^6}{(1-q)(1-q^2)}+\cdots =
+							\prod_{j=0}^{\infty}\frac{1}{(1-q^{5j+2})(1-q^{5j+3})}\]
+						</div>
+					</section>
+
+					<section>
+						<h3>Maxwell&#8217;s Equations</h3>
+
+						<div class="fragment">
+							\[  \begin{aligned}
+							\nabla \times \vec{\mathbf{B}} -\, \frac1c\, \frac{\partial\vec{\mathbf{E}}}{\partial t} &amp; = \frac{4\pi}{c}\vec{\mathbf{j}} \\   \nabla \cdot \vec{\mathbf{E}} &amp; = 4 \pi \rho \\
+							\nabla \times \vec{\mathbf{E}}\, +\, \frac1c\, \frac{\partial\vec{\mathbf{B}}}{\partial t} &amp; = \vec{\mathbf{0}} \\
+							\nabla \cdot \vec{\mathbf{B}} &amp; = 0 \end{aligned}
+							\]
+						</div>
+					</section>
+				</section>
+
+			</div>
+
+		</div>
+
+		<script src="../../lib/js/head.min.js"></script>
+		<script src="../../js/reveal.js"></script>
+
+		<script>
+
+			Reveal.initialize({
+				history: true,
+				transition: 'linear',
+
+				math: {
+					// mathjax: 'http://cdn.mathjax.org/mathjax/latest/MathJax.js',
+					config: 'TeX-AMS_HTML-full'
+				},
+
+				dependencies: [
+					{ src: '../../lib/js/classList.js' },
+					{ src: '../../plugin/math/math.js', async: true }
+				]
+			});
+
+		</script>
+
+	</body>
+</html>
diff --git a/inst/reveal.js-3.3.0/test/examples/slide-backgrounds.html b/inst/reveal.js-3.3.0/test/examples/slide-backgrounds.html
new file mode 100644
index 0000000..316c92a
--- /dev/null
+++ b/inst/reveal.js-3.3.0/test/examples/slide-backgrounds.html
@@ -0,0 +1,144 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Slide Backgrounds</title>
+
+		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+
+		<link rel="stylesheet" href="../../css/reveal.css">
+		<link rel="stylesheet" href="../../css/theme/serif.css" id="theme">
+		<style type="text/css" media="screen">
+			.slides section.has-dark-background,
+			.slides section.has-dark-background h2 {
+				color: #fff;
+			}
+			.slides section.has-light-background,
+			.slides section.has-light-background h2 {
+				color: #222;
+			}
+		</style>
+	</head>
+
+	<body>
+
+		<div class="reveal">
+
+			<div class="slides">
+
+				<section data-background="#00ffff">
+					<h2>data-background: #00ffff</h2>
+				</section>
+
+				<section data-background="#bb00bb">
+					<h2>data-background: #bb00bb</h2>
+				</section>
+
+				<section data-background-color="lightblue">
+					<h2>data-background: lightblue</h2>
+				</section>
+
+				<section>
+					<section data-background="#ff0000">
+						<h2>data-background: #ff0000</h2>
+					</section>
+					<section data-background="rgba(0, 0, 0, 0.2)">
+						<h2>data-background: rgba(0, 0, 0, 0.2)</h2>
+					</section>
+					<section data-background="salmon">
+						<h2>data-background: salmon</h2>
+					</section>
+				</section>
+
+				<section data-background="rgba(0, 100, 100, 0.2)">
+					<section>
+						<h2>Background applied to stack</h2>
+					</section>
+					<section>
+						<h2>Background applied to stack</h2>
+					</section>
+					<section data-background="rgb(66, 66, 66)">
+						<h2>Background applied to slide inside of stack</h2>
+					</section>
+				</section>
+
+				<section data-background-transition="slide" data-background="assets/image1.png">
+					<h2>Background image</h2>
+				</section>
+
+				<section>
+					<section data-background-transition="slide" data-background="assets/image1.png">
+						<h2>Background image</h2>
+					</section>
+					<section data-background-transition="slide" data-background="assets/image1.png">
+						<h2>Background image</h2>
+					</section>
+				</section>
+
+				<section data-background="assets/image2.png" data-background-size="100px" data-background-repeat="repeat" data-background-color="#111">
+					<h2>Background image</h2>
+					<pre>data-background-size="100px" data-background-repeat="repeat" data-background-color="#111"</pre>
+				</section>
+
+				<section data-background="#888888">
+					<h2>Same background twice (1/2)</h2>
+				</section>
+				<section data-background="#888888">
+					<h2>Same background twice (2/2)</h2>
+				</section>
+
+				<section data-background-video="https://s3.amazonaws.com/static.slid.es/site/homepage/v1/homepage-video-editor.mp4,https://s3.amazonaws.com/static.slid.es/site/homepage/v1/homepage-video-editor.webm">
+					<h2>Video background</h2>
+				</section>
+
+				<section data-background-iframe="https://slides.com/news/make-better-presentations/embed?style=hidden&autoSlide=4000">
+					<h2>Iframe background</h2>
+				</section>
+
+				<section>
+					<section data-background="#417203">
+						<h2>Same background twice vertical (1/2)</h2>
+					</section>
+					<section data-background="#417203">
+						<h2>Same background twice vertical (2/2)</h2>
+					</section>
+				</section>
+
+				<section data-background="#934f4d">
+					<h2>Same background from horizontal to vertical (1/3)</h2>
+				</section>
+				<section>
+					<section data-background="#934f4d">
+						<h2>Same background from horizontal to vertical (2/3)</h2>
+					</section>
+					<section data-background="#934f4d">
+						<h2>Same background from horizontal to vertical (3/3)</h2>
+					</section>
+				</section>
+
+			</div>
+
+		</div>
+
+		<script src="../../lib/js/head.min.js"></script>
+		<script src="../../js/reveal.js"></script>
+
+		<script>
+
+			// Full list of configuration options available here:
+			// https://github.com/hakimel/reveal.js#configuration
+			Reveal.initialize({
+				center: true,
+				// rtl: true,
+
+				transition: 'linear',
+				// transitionSpeed: 'slow',
+				// backgroundTransition: 'slide'
+			});
+
+		</script>
+
+	</body>
+</html>
diff --git a/inst/reveal.js-3.3.0/test/examples/slide-transitions.html b/inst/reveal.js-3.3.0/test/examples/slide-transitions.html
new file mode 100644
index 0000000..88119dc
--- /dev/null
+++ b/inst/reveal.js-3.3.0/test/examples/slide-transitions.html
@@ -0,0 +1,101 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Slide Transitions</title>
+
+		<link rel="stylesheet" href="../../css/reveal.css">
+		<link rel="stylesheet" href="../../css/theme/white.css" id="theme">
+		<style type="text/css" media="screen">
+			.slides section.has-dark-background,
+			.slides section.has-dark-background h3 {
+				color: #fff;
+			}
+			.slides section.has-light-background,
+			.slides section.has-light-background h3 {
+				color: #222;
+			}
+		</style>
+	</head>
+
+	<body>
+
+		<div class="reveal">
+
+			<div class="slides">
+
+				<section>
+					<h3>Default</h3>
+				</section>
+
+				<section>
+					<h3>Default</h3>
+				</section>
+
+				<section data-transition="zoom">
+					<h3>data-transition: zoom</h3>
+				</section>
+
+				<section data-transition="zoom-in fade-out">
+					<h3>data-transition: zoom-in fade-out</h3>
+				</section>
+
+				<section>
+					<h3>Default</h3>
+				</section>
+
+				<section data-transition="convex">
+					<h3>data-transition: convex</h3>
+				</section>
+
+				<section data-transition="convex-in concave-out">
+					<h3>data-transition: convex-in concave-out</h3>
+				</section>
+
+				<section>
+					<section data-transition="zoom">
+						<h3>Default</h3>
+					</section>
+					<section data-transition="concave">
+						<h3>data-transition: concave</h3>
+					</section>
+					<section data-transition="convex-in fade-out">
+						<h3>data-transition: convex-in fade-out</h3>
+					</section>
+					<section>
+						<h3>Default</h3>
+					</section>
+				</section>
+
+				<section data-transition="none">
+					<h3>data-transition: none</h3>
+				</section>
+
+				<section>
+					<h3>Default</h3>
+				</section>
+
+			</div>
+
+		</div>
+
+		<script src="../../lib/js/head.min.js"></script>
+		<script src="../../js/reveal.js"></script>
+
+		<script>
+
+			Reveal.initialize({
+				center: true,
+				history: true,
+
+				// transition: 'slide',
+				// transitionSpeed: 'slow',
+				// backgroundTransition: 'slide'
+			});
+
+		</script>
+
+	</body>
+</html>