Adjust paths.
Cleanup.

Use relative paths. Cleanup.

- Add metadata-collect-agent and its dependencies.
- Add fluent-bit output plugin for Wendelin (fluentbit_wendelin.so) and its dependencies.

CSR id shall be requested only when it's not available yet, as otherwise it
contacts caucase server needlessly, and in some circumstances it can result
with bogus new CSR.

Fixes a build error with recent gawk versions.

As refernce to the network-config-ipv4 part has been removed from the
publish-connection-information the part was not installed anymore, so the
netconfig.sh file was not added.

Fixed it by simply adding this part to the installed ones.

This fixes commit 3f7d8965

Server header might be changed by client facing caddy, for which caddy code
has been fixed to not transmit the Server header at all by default.
In ATS Server header has been disabled by configuration.
haproxy does not add Server header at all.
Thanks to improvement in the test backend, it's asserted that Server header
send by the backend is left intact.

This was useless. dumps is enough.

And upgrading to the python3-supported version (1.1) requires gtk3 and recent
versions of freetype, glib, atk, gtk, gtkmm, atkmm...

https://wiki.inkscape.org/wiki/Tracking_Dependencies

This reverts commit 27f574bc.

NEO now should support zodbpickle >= 2 with nexedi/neoppod!19.

/cc @jerome
/merge-request-on nexedi/slapos!1125

Pick up nexedi/wendelin.core@3d0f134c to
fix build on Python3.