Fix request #6352: Status field missing in JSON for GET /trackers/:id

Change-Id: Ib6ec8d1ad0399d9e1e9a61fb8bf3dad5a6410719
Merge commit 'refs/changes/31/2031/1' of http://gerrit.tuleap.net/tuleap into tuleap-stable-master

* http://gerrit.tuleap.net/tuleap:
  Fix request #6352: Status field missing in JSON for GET /trackers/:id

Change-Id: Ie2bd20d872d3608a49a0da159e49a024099a8cf5
Tuleap 6.10.99.74

Change-Id: I986506f0d1ed7c092d24cbb7639bca345921cb98