unittest step2: bye bye to multiple entrypoints for unittest

utils/tip/froggertest.html

Index: utils/tip/froggertest.html
diff --git a/utils/tip/froggertest.html b/utils/tip/froggertest.html
index 34bcb41a105285286caf6fc53c80ee3639459504..4ff08b1f6202e964f2b6468d8a09226d67cb747b 100644
--- a/utils/tip/froggertest.html
+++ b/utils/tip/froggertest.html
@@ -4,9 +4,11 @@
         src="../../lib/unittest/test_controller.js"></script>
 <script type="application/dart">
 #import('dart:dom');
-#import('../../lib/unittest/unittest_dom.dart');
+#import('../../lib/unittest/unittest.dart');
+#import('../../lib/unittest/dom_configuration.dart');
 
 void main() {
+  useDomConfiguration();
   test('MathTest', () { Expect.equals(2, 1 + 1); });
   test('BoolTest', () { Expect.notEquals(true, false); });
 }