use embdded fonts for reveal 3.2.0
diff --git a/inst/rmarkdown/templates/revealjs_presentation/resources/reveal.js-3.2.0/css/theme/beige.css b/inst/rmarkdown/templates/revealjs_presentation/resources/reveal.js-3.2.0/css/theme/beige.css
index be18733..b009339 100644
--- a/inst/rmarkdown/templates/revealjs_presentation/resources/reveal.js-3.2.0/css/theme/beige.css
+++ b/inst/rmarkdown/templates/revealjs_presentation/resources/reveal.js-3.2.0/css/theme/beige.css
@@ -1,10 +1,41 @@
+@font-face {
+  font-family: 'Lato';
+  font-style: normal;
+  font-weight: 400;
+  src: url(fonts/Lato.ttf) format('truetype');
+}
+@font-face {
+  font-family: 'Lato';
+  font-style: normal;
+  font-weight: 700;
+  src: url(fonts/LatoBold.ttf) format('truetype');
+}
+@font-face {
+  font-family: 'Lato';
+  font-style: italic;
+  font-weight: 400;
+  src: url(fonts/LatoItalic.ttf) format('truetype');
+}
+@font-face {
+  font-family: 'Lato';
+  font-style: italic;
+  font-weight: 700;
+  src: url(fonts/LatoBoldItalic.ttf) format('truetype');
+}
+
 /**
  * Beige theme for reveal.js.
  *
  * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
  */
-@import url(../../lib/font/league-gothic/league-gothic.css);
-@import url(https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic);
+@font-face {
+  font-family: 'League Gothic';
+  src: url("../../lib/font/league_gothic-webfont.eot");
+  src: url("../../lib/font/league_gothic-webfont.eot?#iefix") format("embedded-opentype"), url("../../lib/font/league_gothic-webfont.woff") format("woff"), url("../../lib/font/league_gothic-webfont.ttf") format("truetype"), url("../../lib/font/league_gothic-webfont.svg#LeagueGothicRegular") format("svg");
+  font-weight: normal;
+  font-style: normal; }
+
+
 /*********************************************
  * GLOBAL STYLES
  *********************************************/