Fix text/html body format when editing an artifact

Change-Id: Iee5c4afd2726a8495ae4e375b236340a76bb3e0a
Merge commit 'refs/changes/61/1561/2' of ssh://gerrit.tuleap.net:29418/tuleap into HEAD

* ssh://gerrit.tuleap.net:29418/tuleap:
  Fix text/html body format when editing an artifact

Change-Id: Ia5efe2ce7926be949eae068266f37cc5ae1d2b45
This is Tuleap 6.7.99.44

Change-Id: Ifd706aa7156bc8f73bc94f756245f4d67ee893fb
Fix version of plugin tracker_date_reminder

Change-Id: Ice46c0e6d1235e97878b33e9ab6938c6607ad860
This is Tuleap 6.8

Change-Id: I34da4c5f19be93a1067a3fdcfbc63e62380d6521