Create associated packages for the dart:collection and dart:async libs.

R=sgjesse@google.com

Review URL: https://codereview.chromium.org//113883002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/logging@31260 260f80e4-7a28-3924-810f-c04153c831b5
diff --git a/lib/logging.dart b/lib/logging.dart
index 8bff36b..ba342f7 100644
--- a/lib/logging.dart
+++ b/lib/logging.dart
@@ -51,7 +51,7 @@
 library logging;
 
 import 'dart:async';
-import 'package:collection_helpers/wrappers.dart';
+import 'package:collection/wrappers.dart';
 
 /**
  * Whether to allow fine-grain logging and configuration of loggers in a
diff --git a/pubspec.yaml b/pubspec.yaml
index 098558c..ef3a4cc 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -10,6 +10,6 @@
 environment:
   sdk: '>=1.0.0 <2.0.0'
 dependencies:
-  collection_helpers: '>=0.9.1 <0.10.0'
+  collection: '>=0.9.0 <0.10.0'
 dev_dependencies:
   unittest: '>=0.9.0 <0.10.0'