Backed out changeset f97578949399 (bug 1032947)
Backed out changeset 91b03a644dbe (bug 1019770)
Backed out changeset 981f8345edd8 (bug 1019770)
Backed out changeset 5ea9b7bd2db5 (bug 1019770)
Backed out changeset 6728977a3687 (bug 1031952) to fix bustage on a CLOSED TREE