uiref -- added extras view, and demonstrated fallback keystroke handler.

Change-Id: I9c0399b7b10bf86ffa3069863b5282042c8a0d7c
diff --git a/uiref/src/main/resources/app/view/uiRefExtra/uiRefExtra.html b/uiref/src/main/resources/app/view/uiRefExtra/uiRefExtra.html
new file mode 100644
index 0000000..34c8169
--- /dev/null
+++ b/uiref/src/main/resources/app/view/uiRefExtra/uiRefExtra.html
@@ -0,0 +1,9 @@
+<!-- partial HTML -->
+<div id="ov-ui-ref-extra">
+    <div>
+        A view from which to demonstrate extra features.
+    </div>
+    <div>
+        Try pressing the [ and ] keys, as well as others.
+    </div>
+</div>