2.4.0

Features and Improvements

• A maintenance page is published on the same port than Odoo (8069) during the
  marabunta migration (need anthem >= 0.10.0 and marabunta >= 0.7.2)
• Support installation of Odoo addons packaged as Python wheels

Bugfixes

• The start-entrypoint.d/000_base_url script might fail when we don't run
  marabunta migration and the database does not exist, the script is now
  ignored in such case.

Libraries

• Upgrade anthem to 0.10.0
• Upgrade marabunta to 0.7.2, includes a maintenance page during the upgrade!
• Add odoo-autodiscover>=2.0.0b1 to support Odoo addons packaged as wheels
• Upgrade psycopg2 to 2.7.3.1 with several bugfixes notably "Fixed
  inconsistent state in externally closed connections" in
  http://initd.org/psycopg/articles/2017/07/22/psycopg-272-released/