Update dovecot to 2.3.1, and dovecot-pigeonhole to 0.5.1

This is a very large update, and it WILL require manually
updating existing conf files, though the changes to do so
are not extensive. Updating instructions are here:

	https://wiki2.dovecot.org/Upgrading/2.3

Additionally there are various cleanups to the dovecot rc(8)
script, and support for a LUA scripting interface for dovecot.

The decision was made not to import the 2.3.0 or 2.3.0.1 releases
here, due to the number of existing bugs. ler and I have been
dogfooding it for months now, and all of the bugs I've encountered
are fixed in this 2.3.1 release.

This update is the result of many, many hours of collborative work
between ler and me, and the input of many people on the freebsd-ports
list.

1 files changed, 13 insertions, 0 deletions

diff --git a/UPDATING b/UPDATING
index 197a65ac45fd..61b6cfa77301 100644
--- a/UPDATING
+++ b/UPDATING
@@ -5,6 +5,19 @@ they are unavoidable.
 You should get into the habit of checking this file for changes each time
 you update your ports collection, before attempting any port upgrades.
 
+20180401:
+  AFFECTS: users of mail/dovecot and mail/dovecot-pigeonhole
+  AUTHOR: adamw@FreeBSD.org
+
+  Dovecot has been upgraded to 2.3.1, and pigeonhole to 0.5.1. Most
+  existing dovecot installations MUST be modified for 2.3, but for
+  most users the modifications are simple.
+
+  Modify your Dovecot conf.d/ files before spinning up 2.3.1. The
+  upgrading instructions are detailed here:
+
+  	https://wiki2.dovecot.org/Upgrading/2.3
+
 20180330:
   AFFECTS: users of lang/perl5*
   AUTHOR: mat@FreeBSD.org