GUACAMOLE-302: Additions made to every remaining field (every field except username and password) so that they can now be manually focussed using the custom guacFocus directive.

guacamole/src/main/webapp/app/form/templates/timeZoneField.html

@@ -3,6 +3,7 @@
     <!-- Available time zone regions -->
     <select class="time-zone-region"
             ng-disabled="disabled"
+            guac-focus="focused"
             ng-model="region"
             ng-options="name for name in regions | orderBy: name"></select>