[R] use dbhelper.binary_value to process passwords and other Bytes fields
(instead of dbapi_module.Binary or hardcoding buffer()).
This requires (esp. in serverctl) version 1.3.1 of logilab.database.
Dependencies updated.
debian/tmp/usr/bin/cubicweb-ctl usr/bin/
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/cwctl.py usr/lib/PY_VERSION/site-packages/cubicweb
debian/cubicweb-ctl.bash_completion etc/bash_completion.d/cubicweb-ctl