Add a script to delete multiple artifacts

Change-Id: I0bb2352e1e07e720b85e8943c56fffe35ac42ec7
Merge commit 'refs/changes/35/2235/4' of ssh://gerrit.tuleap.net:29418/tuleap into stable

* ssh://gerrit.tuleap.net:29418/tuleap:
  Add a script to delete multiple artifacts
This is Tuleap 6.12.99.42

Change-Id: I6f62ef00d03b56d2fb5bad39ded1b0878114d1a5