Version 0.6.21.5

Fix branch value in deps files

R=kustermann@google.com

Review URL: https://codereview.chromium.org//23503073

git-svn-id: http://dart.googlecode.com/svn/branches/0.6@27591 260f80e4-7a28-3924-810f-c04153c831b5
diff --git a/tools/VERSION b/tools/VERSION
index 31a19a2..f653204 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -1,4 +1,4 @@
 MAJOR 0
 MINOR 6
 BUILD 21
-PATCH 4
+PATCH 5