unittest step2: bye bye to multiple entrypoints for unittest

samples/tests/samples/src/lib/util/UtilTest.dart

Index: samples/tests/samples/src/lib/util/UtilTest.dart
diff --git a/samples/tests/samples/src/lib/util/UtilTest.dart b/samples/tests/samples/src/lib/util/UtilTest.dart
index 6afb4b1e59e5685d0a16f9e2e4c2975e51fb676c..e354bd867fb82fd59d7fd52be668dc36262ef409 100644
--- a/samples/tests/samples/src/lib/util/UtilTest.dart
+++ b/samples/tests/samples/src/lib/util/UtilTest.dart
@@ -5,10 +5,12 @@
 #library('util_tests');
 
 #import('dart:html');
-#import('../../../../../../lib/unittest/unittest_html.dart');
+#import('../../../../../../lib/unittest/unittest.dart');
+#import('../../../../../../lib/unittest/html_config.dart');
 #import('../../../../../ui_lib/util/utilslib.dart');
 
 main() {
+  useHtmlConfiguration();
   test('insertAt', () {
     var a = [];
     CollectionUtils.insertAt(a, 0, 1);