Follow-up request #7104: DRY on subversion repository path

Also fix request #7107: SOAP getSvn* doesnt work on projects with project shortname in mixed case

Change-Id: I9dffbab9dd85f5c995499fea940979939ff75e8a
Merge commit 'refs/changes/81/2681/2' of ssh://gerrit.tuleap.net:29418/tuleap into HEAD

* ssh://gerrit.tuleap.net:29418/tuleap:
  Follow-up request #7104: DRY on subversion repository path

Change-Id: Iadad598b8413ab87e3266cfe5c7e810b32907bd6
This is Tuleap 7.2.99.53

Change-Id: Ifeb943eee3912727193301c70d2daadc3b7f5739