Renamming logic (odoo_version.timestamp.extension) of published
files moved out of publish function

[REF] Packaging: backport of a7ab5a41
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[FIX] Packaging: backport of 13471630
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[FIX] Package: partial apply of d9e72a37
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[REF] Package: partial backport of d4624fa8
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only create db

This way we'll be using docker cache to spare dependencies download time.

Install psycogreen from easy_install (not in EPEL), required for openerp-gevent

It's about time

PyChart is now in the EPEL repo so we now list it as required in
setup.cfg. The other mandatory lib not provided by EPEL are
pyPdf, vatnumber and pydot and are now installed by easy_install
during the post install.

By default, the package was installed in /usr/local/lib/python2.7 in CentOS7.
It is problematic because most of other python packages are installed in /usr/lib
and also because /usr/local/lib is not in the default PYTHONPATH. It's fixed by
overriding the install script and forcing prefix to be /usr.

Added a minimal systemd unitfile.
Adapted tests accordingly.

Allow to
1) avoid a special case for debian packages in _publish function
2) publish debian packages with correct filename (ie keeping _amd64, _all)

The openerp-server.conf now generates the bin_path record, in order
to resolve calls to external binaries served in the thirdparty dir.

Adpated report.py to use find_in_path and not directly which.

[FIX] Package: split the version to not include the latest commit's hash included by the package script

setup.nsi: make it build and use postgresql 9.3
win32_se*: lint and simplified
Makefile: only one mode

[ADD] RedHat: defined the dependencies and added a post-install script to create the odoo user, the odoo configuration file, ...

It should not causes any trouble as it is not used in odoo.py

- 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