Brought over the language strings from edunetworkbuilder and functions

for making language translation work.

Web/index.html

@@ -31,6 +31,7 @@
 <script src="selectmenu.js"></script>
 <script src="network.js"></script>
 <script src="textwindow.js"></script>
+<script src="language.js"></script>
 <script src="ui.js"></script>
 </body>
 </html>