story #7525: Add a Mass admin tab listing all repos, they are selectable

Change-Id: Id9e13701c0cef00dec3f23c8332f202b9e6a1ceb
Merge commit 'refs/changes/41/3241/6' of ssh://gerrit.tuleap.net:29418/tuleap into stable

* ssh://gerrit.tuleap.net:29418/tuleap:
  story #7525: Add a Mass admin tab listing all repos, they are selectable
This is Tuleap 7.7.99.12

Change-Id: I92386b406490e81a426de78f52a07332a7254d27