Version 1.5.5

Apply patch from https://code.google.com/p/dart/issues/detail?id=19830 to fix editor excessive memory usage

R=kasperl@google.com

Review URL: https://codereview.chromium.org//370283002

git-svn-id: http://dart.googlecode.com/svn/branches/1.5@38025 260f80e4-7a28-3924-810f-c04153c831b5
diff --git a/tools/VERSION b/tools/VERSION
index 45dbca7..ae98bff 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -26,6 +26,6 @@
 CHANNEL stable
 MAJOR 1
 MINOR 5
-PATCH 4
+PATCH 5
 PRERELEASE 0
 PRERELEASE_PATCH 0