Added require.js example

timeline_examples.html

@@ -110,6 +110,7 @@
     <a class='exampleLink' href="examples/timeline/other/hidingPeriods.html">hiding periods</a><br />
     <a class='exampleLink' href="examples/timeline/other/localization.html">localization</a><br />
     <a class='exampleLink' href="examples/timeline/other/performance.html">performance</a><br />
+    <a class='exampleLink' href="examples/timeline/other/requirejs/requirejs_example.html">require.js example</a><br />
 
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