This brings updates of many dependencies on python3, while mostly
keeping the same versions for python2.

This enables a new `erp5-py3` test in software/slapos-sr-testing, which
should pass already, but with NEO and WCFS being marked as expected
failure or skipped for now.

This also brings pylint support on python3, which we will be able to
reuse in software/slapos-testing.
Co-authored-by: Kazuhiko SHIOZAKI <kazuhiko@nexedi.com>
Co-authored-by: Arnaud Fontaine <arnaud.fontaine@nexedi.com>
Co-authored-by: Bryton Lacquement <bryton.lacquement@nexedi.com>

This bring new versions of jupyter, numpy and other scientific python
software. This impacts software/jupyter, which will now run more recent
versions and prepares stack/erp5 for python3 support, while not
impacting the python2 version.

This reverts commit 6c399134.

Currently libsnappy is being compiled in the folder lib64 in some
OSes (e.g. SUSE SLE 15.6).
This is a problem because some dependents look for the library in the
lib subdirectory.
This change forces snappy to always use the lib directory.

See merge request nexedi/slapos!1581

This is a follow-up of 7a1ba8df.

because re6stnet only supports OpenVPN 2.4.
This reverts commit 6802867d.

When compiling older GCC versions in newer machines, libsanitizer
does not compile, showing a error: `multiple definition of
'enum fsconfig_command'` (e.g.
https://github.com/llvm/llvm-project/issues/56421).
This is because starting from Glibc 2.36, it is not possible to include
both "linux/fs.h" and "sys/mount.h".

We can apply a patch, similar to the one in
https://reviews.llvm.org/D129471 , but with the extension and lines
changed to match the file. This is also similar to the upstream fix.

See merge request nexedi/slapos!1579

This will be used to add the sqlite3 binary directory to PATH.

See nexedi/neoppod@5923f8f5

This now supports producing html reports directly

nbd2-host and nbd2-port are asserted too.

Test are reorganized to easily assert mixed scenarios.

Zope no longer serve XML-RPC in ERP5, unless it is explicitly enabled
using this.

See erp5!1931

--enable-readline is broken:
  - it searches for readline.h instead of readline/readline.h
  - it does not abort when it fails to find headers
Use --with-readline-inc so that it sets HAVE_READLINE.

Also use the dedicated configure option to enable update limit.
And sqlite3 does not depend directly on ncurses.

See neoppod@71564067

See merge request !1566

See merge request !1576

See merge request !1572

to avoid the following error:
relocation R_X86_64_32S against `.rodata' can not be used when making a shared object; recompile with -fPIC

software/osie-coupler: keep the build source directory instead of having another open62541-source part.