Remove use codendi as db

Change-Id: I607a5046a4db7b1450e7db81725664b3f799b197
Merge commit 'refs/changes/15/415/2' of http://gerrit.tuleap.net/tuleap into stable

* http://gerrit.tuleap.net/tuleap:
  Remove use codendi as db
This is Tuleap 5.12.99.62