follow changes done on upstream for erp5 code.

  Use from slapos.util and convert str to bytes (as expected on python3)

   Probably this was based on some outdated version, since the calculation already changed on:

       nexedi/erp5@6ded2571

  The code was rework to be visible by anonymous

the vulnerability database content seems to have changed

Stop and delete b2b services

- Support Slave Instance allocated in the same tree
- allow creating allocation consistency ticket on Instance Node
- handle allocation consistency for Slave Instance without Instance Node

This is a fixup of d42de18b.

history and statistics files are sometimes corrupted because of invalid json

We do 2 things to improve this:
 1. we use json.load to read the previous file (this will detect if the file is corrupted)
 2. we use json.dump to write the entire file at once in a temporary file and then we move this file to be atomic.

Probably this will consume more resources.

See merge request !728

  This prevents installation update modification date due Web Page
  modification date is newer.

  This fixes the coding style tests broken by:

    slapos_web_deploy: Added missing standalone-test
    slapos_web_deploy: Add rplc_coupler deploy script

  It was create a while ago, but never pushed.

Do not acquire from Person to an Organisation, as most user do not have access to the organisation_module

- directly show the software_release and sofware_type informations
- instance title is meaningless on this view, as admin want to get an understanding of which kind of software are instanciated
- drop creation_date, image columns

See merge request !727