anchor.diff:  
           block slides
   
  -    script(src='lib/js/head.min.js')
  -    script(src='js/reveal.min.js')
  +    script(src='#{reveal_js}/lib/js/head.min.js')
  +    script(src='#{reveal_js}/js/reveal.min.js')
   
       block options
   
  
positive.code: 
          // Optional libraries used to extend on reveal.js
          dependencies: [
            { src: 'lib/js/classList.js', condition: function() { return !document.body.classList; } },
            { src: 'plugin/markdown/showdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
            { src: 'plugin/markdown/markdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
            { src: 'plugin/highlight/highlight.js', async: true, callback: function() { hljs.initHighlightingOnLoad(); } },
            { src: 'plugin/zoom-js/zoom.js', async: true, condition: function() { return !!document.body.classList; } },
            { src: 'plugin/notes/notes.js', async: true, condition: function() { return !!document.body.classList; } }
            // { src: 'plugin/search/search.js', async: true, condition: function() { return !!document.body.classList; } }
            // { src: 'plugin/remotes/remotes.js', async: true, condition: function() { return !!document.body.classList; } }
          ]
        }
  
  
negative.code:     meta(name='apple-mobile-web-app-capable', content='yes')
      meta(name='apple-mobile-web-app-status-bar-style', content='black-translucent')
  
      link(rel='stylesheet', href='#{reveal_js}/css/reveal.css')
      link(rel='stylesheet', href='#{reveal_js}/css/theme/default.css', id='theme')
  
      // For syntax highlighting
      link(rel='stylesheet', href='#{reveal_js}/lib/css/zenburn.css')
  
      // If the query includes 'print-pdf', use the PDF print sheet
      script
        document.write( '<link rel="stylesheet" href="#{reveal_js}/css/print/' + ( window.location.search.match( /print-pdf/gi ) ? 'pdf' : 'paper' ) + '.css" type="text/css" media="print">' );
  
      //if lt IE 9
        script(src='#{reveal_js}/lib/js/html5shiv.js')
  
    body
  
  