Merge branch 'patch-1' of https://github.com/keradus/reveal.js into dev

.gitignore

@@ -8,6 +8,7 @@ out/
 log/*.log
 tmp/**
 node_modules/
+package-lock.json
 .sass-cache
 css/reveal.min.css
-js/reveal.min.js
+js/reveal.min.js