these were already defined in stacks and were different here for no
apparent reason.

This is longer needed since years, also the part looks broken.

Reintroduce a patch to fix build error:

    execvp: printf: Argument list too long

that seems to happen again with nodejs 16.

Also add a note for minimal supported version, that will have to be
set in software

This contain the fix for go 1.16 that we backported, so we can use
upstream repository again.

No effort has been made to keep data compatibility, updating instance
probably does not work

For now this still have to be enabled with a config like this in a .conf
file in srv/telegraf/extra-config/  :

    [[inputs.execd]]
      name_override = "slapos"
      # this needs sudo when using can not access supervisor socket, like when being installed in root slapos
      command = ["/usr/bin/sudo", "$SOFTWARE_DIR/go.work/bin/telegraf-input-slapos", "-config", "/path/to/slapos.conf"]

/path/to/slapos.conf would contain something like this:

    [[inputs.slapos]]
      ## Folder where partitions are located
      instance_root = "/srv/slapgrid/"

      ## filepath.Glob pattern to look for recursive instances
      recursive_instance_glob_pattern = "*/srv/runner/inst*/"

      ## Path of supervisor socket, relative to instance root
      socket_name = "sv.sock"

One notable change since previous version is that a new sql input,
that can be used to get metrics from sql queries.

build on zope4

wip : patches

update patches

reactivatee some patches & egg and remove dep to old ZSQLMEthod

fix zope patch

add Sessions product

reintroduce reStructuredText

use ExternalEditor compatible with Zope4

reinstroduce the config of _Z2PORT and _Z2HOST for testing

fix patch ?

add CMFDefault

Revert "add CMFDefault"

This reverts commit 3e3545ebd02fa188f4265301bbbf6b6b0f0dad9b.

pin eggs version

jerome: stop allowing version picking and pin versions

Going Go1.16.10 -> Go1.16.13 brings in fixes to compiler, runtime and stdlib
including security fixes to syscall and net/http packages.

https://go.dev/doc/devel/release#go1.16.minor

Tested manually via adjusted helloworld because nothing intree currently uses Go1.16.

Without this we sometimes hit the socket path length limit when testing
ERP5 inside Theia inside erp5testnode.

wait a first time that ERP5 have finished processing activities for
initial site creation and tolerate that during this time zopes might
reply with error code

In ubuntu 21.04 (libc6 2.33-0ubuntu5) or current debian testing
(libc6 2.32-5) no longer use open to open /etc/hosts, but what appears
as "openat" in strace output - but can not be replaced by defining an
openat function.

This uses https://github.com/figiel/hosts which uses another approach
of replacing getaddrinfo, gethostbyname* and inet_aton.

Users have been updated a bit, because there are some small differences:
 - the /etc/hosts replacement file is defined by HOSTS_FILE environment
   variable, not HOSTS
 - the library name is libuserhosts.so, not userhosts.so

Other notable differences, for which we did not need code change are:
 - the new library also try to load a file when HOSTS_FILE is not set
 - the new library still use original /etc/hosts file
 - the new library supports aliases to hostnames, not only ip addresses

on debian 11, old software does not compile with an error like:

    ERROR: ld.so: object '/srv/slapgrid/slappart47/t/dcm/i/0/tmp/shared/userhosts/e880bfd75804e2ec50f297b173a4ae9a__compile__/userhosts-1d3b463e7856db6e674a06258c0840206e6a7b72-1d3b463e7856db6e674a06258c0840206e6a7b72/userhosts' from LD_PRELOAD cannot be preloaded (cannot dynamically load position-independent executable): ignored.

the fixes have been backported to a new 1.0.167.5 tag

This test is installing an old version of ERP5 that did not satisfy all
the software checks. We don't want to check the old version and we check
the new version in software/erp5/test so no need to check here.