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/selectField.html

@@ -1,2 +1,2 @@
-<select ng-model="model" ng-disabled="disabled"
-        ng-options="option as getFieldOption(option) | translate for option in field.options | orderBy: value"></select>
+<select ng-model="model" ng-disabled="disabled" guac-focus="focused"
+        ng-options="option as getFieldOption(option) | translate for option in field.options | orderBy: value"></select>