using unittest via package import

tests/html/indexeddb_4_test.dart

 library IndexedDB4Test;
-import '../../pkg/unittest/lib/unittest.dart';
-import '../../pkg/unittest/lib/html_config.dart';
+import 'package:unittest/unittest.dart';
+import 'package:unittest/html_config.dart';
 import 'dart:async';
 import 'dart:html' as html;
 import 'dart:indexed_db';
 
 // Test for KeyRange and Cursor.
 
 const String DB_NAME = 'Test4';
 const String STORE_NAME = 'TEST';
 const int VERSION = 1;
 
@@ skipping 108 matching lines @@
 
     bound4() =>
         // OPTIONALS testRange(db, new KeyRange.bound(20, 30, lowerOpen: true),
         testRange(db, new KeyRange.bound(20, 30, true), 21, 30);
 
     bound5() =>
         // OPTIONALS testRange(db, new KeyRange.bound(20, 30, lowerOpen: true, upperOpen: true),
         testRange(db, new KeyRange.bound(20, 30, true, true), 21, 29);
   }
 }