When a odoo user already exists, the installation of the deb package
fails because the `/var/lib/odoo` directory does not exists.

The reason is that the postinst script is trying to change the
permissions of this directory which is only created if a odoo user does
not already exists.

With this commit, the permission changes only occurs when the directory
is created.

closes odoo/odoo#111814

Signed-off-by: Christophe Monniez (moc) <moc@odoo.com>

no fallbacks were implemented to `openerp-server.conf`.

[FIX] packaging: debian: update-python-module is no more

The command is not installed by default. It was available in the
python-support library which we didn't depend on and now this library
is no more in debian jessie/ubuntu xenial.

Backported for #13302

The command is not installed by default. It was available in the
python-support library which we didn't depend on and now this library
is no more in debian jessie/ubuntu xenial.

fixes #11785

[REF] Packaging: backport of a7ab5a41
[REF] Packaging: backport of a700a113
[REF] Packaging: backport of 9d0bd280
[REF] Packaging: backport of b0722d3e
[REF] Packaging: backport of 24b2c938
[REF] Packaging: backport of e874cdaf
[REF] Packaging: backport of 56b61da1
[REF] Packaging: backport of be96dd85
[REF] Packaging: backport of 50a4da99
[REF] Packaging: backport of 1c41f369
[REF] Packaging: backport of cc113317
[FIX] Packaging: backport of 13471630
[REF] Package: backport of 93845d68
[REF] Package: backport of 012bc01c
[FIX] Package: partial apply of d9e72a37
[REF] Package: backport of 67036fef
[REF] Package: backport of 73de0138
[REF] Package: backport of 30d987ed
[REF] Package: backport of 29132669
[REF] Package: backport of 7db12dc4
[REF] Package: backport of f668f9c6
[REF] Package: backport of 2cf4051a
[REF] Packaging: backport of 73592487
[REF] Packaging: backport of f2598ecd
[REF] Package: backport of fd21912c
[REF] Package: backport of 9a8cdf49
[REF] Package: backport of 2f4984b8
[REF] Package: backport of 6e9edeeb
[REF] Package: partial backport of d4624fa8
[REF] Package: backport of 9f13722f

only create db

[FIX] Debian: updated informations and dependencies, refactored debhelpers scripts to allow easy name change, simplified debhelper rules

[REF] Debian: renamed debhelpers scripts to not contain openerp in their filenames anymore, removed run_all_with_tests.sh script

- move packaging stuff to setup
- remove historical stuff
- remove oe, odoo-cmd-fme will be merged with the convered commands
- add an odoo.py script to run odo and boostrap it
- simplify README
- prepare to move documentation to the github wiki

bzr revid: al@openerp.com-20130320231828-hhw7o17ahvl0cv7b

bzr revid: al@openerp.com-20120106002459-a4o9xa3m6d81maom

bzr revid: al@openerp.com-20111005200458-7ggpb7envf16yvfw

bzr revid: al@openerp.com-20111005001643-ngs7quhipn79gauu

bzr revid: al@openerp.com-20111003013956-kekmedzn8qm3u3s7

bzr revid: al@openerp.com-20111003011735-02q79s36os3wltm6

bzr revid: al@openerp.com-20111001162731-6cqw1usxrb6045vl