[Integrated] RFR: Use seeded materialization when generating mails

[Robin Westberg]

Changeset: 4b961c8a
Author:    Robin Westberg <rwestberg at openjdk.org>
Date:      2020-02-12 14:56:34 +0000
URL:       https://git.openjdk.java.net/skara/commit/4b961c8a

Use seeded materialization when generating mails

Reviewed-by: ehelin

! bots/mlbridge/src/main/java/org/openjdk/skara/bots/mlbridge/ArchiveWorkItem.java
! bots/mlbridge/src/main/java/org/openjdk/skara/bots/mlbridge/MailingListBridgeBot.java
! bots/mlbridge/src/main/java/org/openjdk/skara/bots/mlbridge/MailingListBridgeBotBuilder.java