[mercurial/f18] (3 commits) ...update to 2.3.1

[Neal Becker]

Summary of changes:

  9bf375f... update to 2.3 (*)
  f7a8ee4... update to 2.3 (*)
  82aa4a4... update to 2.3.1 (*)

(*) This commit already existed in another branch; no separate mail sent