Fix download URL for Gerrit 2.6

code.google.com wouldn't accept the new WAR file, so I moved all
downloads to Google Cloud Storage.

Change-Id: Ia852da127843c7ff703683b2684889abf572eeb9
diff --git a/ReleaseNotes/ReleaseNotes-2.6.txt b/ReleaseNotes/ReleaseNotes-2.6.txt
index 0c21182..4ef3ca9 100644
--- a/ReleaseNotes/ReleaseNotes-2.6.txt
+++ b/ReleaseNotes/ReleaseNotes-2.6.txt
@@ -3,7 +3,7 @@
 
 Gerrit 2.6 is now available:
 
-link:http://code.google.com/p/gerrit/downloads/detail?name=gerrit-2.6.war[http://code.google.com/p/gerrit/downloads/detail?name=gerrit-2.6.war]
+link:https://gerrit-releases.commondatastorage.googleapis.com/gerrit-2.6.war
 
 Gerrit 2.6 includes the bug fixes done with
 link:ReleaseNotes-2.5.1.html[Gerrit 2.5.1],