Make Centos6 package Tuleap

Change-Id: Ice80b6c551c8a8ce935f388c2114577a0c47744b
Merge commit 'refs/changes/11/411/3' of http://gerrit.tuleap.net/tuleap into tuleap-stable-master

* http://gerrit.tuleap.net/tuleap:
  Make Centos6 package Tuleap
Tuleap 5.12.99.60