shell script do not assume they are called from a directory in the project home, but called from the project home while the scripts themeselves might be somewhere else

Other scripts already assumes that so it should not have much impact, it allows more possibility for the location of the scripts

And stop trying to find version of odoo, it will either not work (like in most cases),
or it will be listed in the pip freeze listing

docker_build: copy modules (defined in setup.cfg in superproject to a new directory for docker to do)