tasks #6673, tasks #6734 fixing mail and adding link to see text changes

Change-Id: I177598e352caea2815b8d9d6b9f2e4088c6bc249
Merge commit 'refs/changes/26/2326/9' of ssh://gerrit.tuleap.net:29418/tuleap into HEAD

* ssh://gerrit.tuleap.net:29418/tuleap:
  tasks #6673, tasks #6734 fixing mail and adding link to see text changes

Change-Id: I7c3ade649212fba18b78f2e6fdb2f1499fb501d9
This is Tuleap 6.12.99.83

Change-Id: I7141179507f78e22192efbbcaab5a30949cee5bb