request #7657: Optimize repositories loading and logging in purge archived repositories

Change-Id: I6b928feec797beabb0f1c2d8f8f7e08911a8b93c
Merge commit 'refs/changes/39/3339/4' of ssh://gerrit.tuleap.net:29418/tuleap into tuleap-stable-master

* ssh://gerrit.tuleap.net:29418/tuleap:
  request #7657: Optimize repositories loading and logging in purge archived repositories

Change-Id: I069bf395aeb441d73b8bdd7360e299a60cc5f065
This is Tuleap 7.8.99.2

Change-Id: I4e92f28f8aad13eb8919c4506d56779edab21626