Before this patch, the debian package depends on `python-pybabel`.
According to the documentation, this is a dummy package for transition
from `python-pybabel` to `python-babel`[1].
This dummy package has thus been removed in debian stretch in favor of
`python-babel`, and the odoo package is thus not installable in debian
stretch.
To fix this, we depend directly on `python-babel`, which is available in
all debian releases[2].
Closes#13905
[1] https://packages.debian.org/jessie/python-pybabel
[2] https://packages.debian.org/jessie/python-babel
RPM packages did not pass the tests because the centos prompt changed
and thus did not match the regexp anymore. We now explicitely specify
the prompt in our Dockerfiles to prevent such issues.
Simon Lejeune
Nicolas Martinelli
Aaron Bohy