added tutorial SPARQL

lod/tutorial/js/bootstrap-4-navbar.js

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+
+/*!
+ * Bootstrap 4 multi dropdown navbar ( https://bootstrapthemes.co/demo/resource/bootstrap-4-multi-dropdown-navbar/ )
+ * Copyright 2017.
+ * Licensed under the GPL license
+ */
+
+
+$( document ).ready( function () {
+    $( '.mobile-drop a.dropdown-toggle' ).on( 'click', function ( e ) {
+        var $el = $( this );
+        var $parent = $( this ).offsetParent( ".mobile-drop" );
+        if ($('.show.mobile-drop').length > 0){
+          $('.show.mobile-drop').each(function(item){
+            $(this).toggleClass('show');
+          });
+        }
+
+        var $subMenu = $( this ).next( ".mobile-drop" );
+        $subMenu.toggleClass( 'show' );
+
+        $( this ).parent( "li" ).toggleClass( 'show' );
+
+        $( this ).parents( 'li.nav-item.dropdown.mobile-drop.show' ).on( 'click', function ( e ) {
+            $( '.mobile-drop .show' ).removeClass( "show" );
+        } );
+
+         if ( !$parent.parent().hasClass( 'navbar-nav' ) ) {
+            $el.next().css( { "top": $el[0].offsetTop, "left": $parent.outerWidth() - 4 } );
+        }
+
+        return false;
+    } );
+} );

lod/tutorial/js/ext_links.js

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+$(document).ready(function() {
+   $('a').each(function() {
+      var a = new RegExp('/' + window.location.host + '/');
+      if (!a.test(this.href)) {
+      $(this).attr("target","_blank");
+      }
+   });
+});

lod/tutorial/js/header_links.js

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+// http://ben.balter.com/2014/03/13/pages-anchor-links/
+
+$(function() {
+  return $("h2, h3, h4, h5, h6").each(function(i, el) {
+    var $el, icon, id;
+    $el = $(el);
+    id = $el.attr('id');
+    icon = '<i class="fa fa-link" style="font-size: 0.8em"></i>';
+    if (id) {
+      return $el.append($("<a />").addClass("header-link").attr("href", "#" + id).html(icon));
+    }
+  });
+});