In preparation for better ERP5 clusterisation.

This reverts commit fdb2b87b.
This breaks erp5 test runner (maybe it does not accept IPv6 in SQL
connection strings).

Also, make it optional.

Unused since egg bump from commit 80bfb5e0 .

It is not used in xwiki and lamp, does not work out of the box in erp5, and
prevents erp5 from moving further toward IPv6 support.
Do not drop its component SR and recipe just yet, as it might find some
use in the near future.

Based on work by Romain Courteaud <romain@nexedi.com>.

Kept backward compatibility about "production" software_type.

1.3.0 has building process which has been found to be cumbersome on some platforms.

Only check if cloudooo and openoffice port is listenning.

This definition is present already into a more appropriate place, on
erp5-promise.

The erp5 is created by erp5-bootstrap, this promise assert if the site
is already created.

All ERP5 profile is now in a single place.
Moreover, use slapos.cfg stack.

stick to Zope 2.12.22 because Zope 2.12.23's ObjectManager.__getitem__ is much slower for a module having lots of sub objects.

ERP5 related test locations can be calculated by eggs:extra-paths, instead of globbing from all parts.

All Products that are not packaged as python distributions need to be placed into a "Products" package since ZEO might need to be able to import them anyway.

And remove products-deps, since ExtFile is also no longer needed

And add polib for parsing .po Files into Localizer. This is used
instead of itools.gettext, which is removed in the ERP5 itools fork

Revert "use erp5-component branch of erp5 repository for erp5-component branch of slapos repository."

This reverts commit 1766ba21.