request #7279 - Do not create tuleap.tours js variable if no tours
defined

Change-Id: I3b35c099771800378b89a1061282f4a8c09511d6
Merge commit 'refs/changes/06/2806/2' of ssh://gerrit.tuleap.net:29418/tuleap into tuleap-stable-master

* ssh://gerrit.tuleap.net:29418/tuleap:
  request #7279 - Do not create tuleap.tours js variable if no tours defined

Change-Id: I4b1466aa90c41971a961dd73b73bd7cf0546f434
Tuleap 7.3.99.8

Change-Id: Ifc56fe4b4d47451a06fc60b13f062f793f782313