Added SiteMap generation to the documentation

docs/spec/sitemapSpec.js

@@ -0,0 +1,23 @@
+var SiteMap = require('sitemap.js').SiteMap;
+var Doc = require('ngdoc.js').Doc;
+
+
+describe('sitemap', function(){
+  it('should render empty sitemap', function(){
+    var map = new SiteMap([]);
+    expect(map.render()).toEqual([
+      '<?xml version="1.0" encoding="UTF-8"?>',
+      '<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">',
+      '</sitemapindex>', ''].join('\n'));
+  });
+
+  it('should render ngdoc url', function(){
+    var map = new SiteMap([new Doc({name: 'a.b.c<>\'"&'})]);
+    expect(map.render()).toContain([
+      ' <url>',
+      '<loc>http://docs.angularjs.org/#!a.b.c&lt;&gt;&apos;&quot;&amp;</loc>',
+      '<changefreq>weekly</changefreq>',
+      '</url>'].join(''));
+
+  });
+});