Added cardwall uri in milestone representation

Change-Id: I73c55666f5a167054e0a3ed8c11819c3ce498308
Test for milestones/:id/cardwall resource

Change-Id: I029fe3e68218795da13e045822f8612709777632
Merge "Test for milestones/:id/cardwall resource" into 5648_cardwall_rest
Bug fixing

- Cast column ids to integer
- Return status in english
- Add Cardwall only when needed

Change-Id: Id9e53ecb12f8d607b0efab454f2f49413e2e401b
Merge remote-tracking branch 'gerrit/5648_cardwall_rest' into tuleap-stable-master

* gerrit/5648_cardwall_rest:
  Bug fixing
  Test for milestones/:id/cardwall resource
  Added cardwall uri in milestone representation

Change-Id: If1caeac0116d8bee8952737b7a32a403cea8d0cf
Tuleap 6.8.99.11

Change-Id: I40a37510ba7b57febd7a94bb22e6554a9cd66e75