Updating dwc for breaking changes that will be part of the next sdk

CHANGELOG.md

Index: CHANGELOG.md
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9bf2aab84e2d985b7dfdd81d536ef0756b665fab..10887ba144a71e66787aa48184f2f52f8a2f8297 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,10 @@ This file contains highlights of what changes on each version of the web
 components package. This file is normally updated whenever we push a new version
 to pub.
 
-## Pub version 0.2.8+4 - Dec 7 (SDK 15595)
+## Pub version 0.2.9 - Dec 7 (bleeding edge SDK 15851)
+  * Updates to comply with all breaking changes in SDK up to 15851
+
+## Pub version 0.2.8+4 - Dec 7 (trunk SDK 15595, integration SDK 15699)
 
   * Support for forwarding error messages and file mappings to the editor
   * Bug fixes:
@@ -13,11 +16,11 @@ to pub.
     * fix --basedir
     * bugs with id when using nested components (component composition)
 
-## Pub version 0.2.8+3 - Nov 30 (SDK 15595)
+## Pub version 0.2.8+3 - Nov 30 (trunk SDK 15595, integration SDK 15699)
 
   * Upgrades for new trunk release (mainly breaking changes in dart:html)
 
-## Pub version 0.2.8+2 - Nov 30 (SDK 15355)
+## Pub version 0.2.8+2 - Nov 30 (trunk SDK 15355)
 
   * Bug fix:
     * hosted and sdk dependencies errors due to changes in html5lib.