Include libsass instead of node-less

Thank you to @d-fence for testing this.

... and use Clipboard instead, which is already in web (put in the
assets_common).

Task #33274

On Ubuntu Xenian, the Odoo package was difficult to install because
three Debian packages were required but could not be found in Ubuntu
repositories. As those packages are not really crucial, they are
now only suggegsted by the Debian package which is therefore
installable on Ubuntu Xenial. One can manually install them as
explained in the documentation.

Closes #20000

Purpose: openid is not used anymore in Odoo, therefore it can be
safely removed.

Purpose:
    The psycogreen module is unmaintained. Last source update was in
    2015 and last pypi package was in 2012. Odoo only use a small
    part of the psycogreen module that could be written directly in
    the odoo code. This commit reproduce the small function from
    psycogreen used in ODoo and remove all depencies from it.
    Also the copyright and license are honored and the documentation
    is updated accordingly.

    pypi pckage: https://pypi.python.org/pypi/psycogreen
    bitbucket repos: https://bitbucket.org/dvarrazzo/psycogreen/

* Add a minimum systemd service file

Debian copyright file was only mentioning odoo files.
Now all js and css files with specific copyright / licenses are added.

Complements 021de21e and #16918

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

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

The use of an entry point was considered in order to provide
an `odoo` command in the path for the packages users, but the
generated entry point will first check that all the things in
install_requires were provided in a not bright way: it'll check
that it matches a distribution name. This does not work because
python-chart does not have the distrubtion name "pychart" which
is provided by the python-pychart package in debian jessie. Same
for suds-jurko which is provided by python-suds in debian stretch
but does not have the distribution name "suds".

Also, adapted the  packages tests to these cli changes.

They were there since long time but to allow some obscure test
to run. As they don't bring anything let's just drop them.

Fix the various place when the rename of the git root directory
broke the packaging script. Also, we can now name the library
"odoo".

[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

* Remove dependency on less-plugin-clean-css which distribution
  packages are broken on debian stretch and derivated.
* Updated documentation.
* Lessc provides a `--compress` argument that could solve this issue.
  According to the documentation at http://lesscss.org/usage/: "[...]
  Compress using less built-in compression. This does an okay job but
  does not utilise all the tricks of dedicated css compression[...]"
  However, using this argument works on lessc 2.5.3 but not on 1.4.2
  (`--compress` arg is present but seems to be break some rules
  i haven't been able to put my finger on).
* Finally, use the minification of the StylesheetAsset that takes care
  of removing the spaces, the comments and the sourcemap with regexes.

fixes issue #9113

introduced by rev c1ff5d89

because it's available in debian stable but not in ubuntu 14.04 (lts)

The stdlib version of the json library is more recent than the 3.5.3
version we are pinning in `requirements.txt`

There is no reason to use it.

Closes #6940

The `unittest2` package is simply a backport of `unittest` from the
Standard Library of Python 2.7 to previous versions.

There is no reason to use it any longer.

Closes #6941

99% of the contributors have signed the CLA
The rest of them have been contacted by email
and are free to either sign the CLA or ask
for their contributions to be removed from
Odoo Community Edition.

See also:
- https://www.odoo.com/cla
- https://www.odoo.com/blog/odoo-news-5/post/adapting-our-open-source-license-245

This library is a SOAP client. It will be used to integrate Odoo with
external web services that use SOAP based protocols.

- Preserved explicit 3rd-party copyright notices
- Explicit boilerplate should not be necessary - copyright law applies
  automatically in all countries thanks to Berne Convention + WTO rules,
  and a reference to the applicable license is clear enough.

- control:
	- duplicated Section entry removed
	- X-Python-Version added
	- Uploaders added
- init:
	- set odoo.py as deamon instead of openerp-server
	- source /lib/lsb/init-functions to fix Debian lintian warning
	  init.d-script-does-not-source-init-functions
- copyright: machine-readable (dep5) copyright

Mainly renaming of OpenERP into Odoo

[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

Commit 388732df introduced a makefile at the root of the project, and
dh_auto_build is using this file instead of setup.py. Explicitely tell
debhelper to not use the makefile.

[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

It's needed because fc8592ad is now loading the `pyPdf` package.