request #6785 - (DAT RETURN)  Change on ArtifactLink are no longer sent by email

Change-Id: I069e71d14f1a1ce321b469cc11e3b2eb6bbc7d20
Merge commit 'refs/changes/71/2371/1' of ssh://gerrit.tuleap.net:29418/tuleap into HEAD

* ssh://gerrit.tuleap.net:29418/tuleap:
  request #6785 - (DAT RETURN)  Change on ArtifactLink are no longer sent by email

Change-Id: I71ee4a4b04930e5c71ba8142415525b9ac49c9e0
This is Tuleap 6.12.99.101

Change-Id: Ideeb505ce8ca75899b5226ac413a881ae284815b