[demo] Updated copyright years

Author: mta452

demo/src/main/assets/OpenSourceLicenses.html

@@ -29,7 +29,7 @@
     </ul>
     <div class="license">
         <code>
-            Copyright 2006-2017 by <br />
+            Copyright 2006-2018 by <br />
             David Turner, Robert Wilhelm, and Werner Lemberg.
         </code>
     </div>
@@ -74,7 +74,7 @@
     </ul>
     <div class="license">
         <code>
-            Copyright (C) 2017 Muhammad Tayyab Akram<br />
+            Copyright (C) 2016-2018 Muhammad Tayyab Akram<br />
             <br />
             Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);<br />
             you may not use this file except in compliance with the License.<br />