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/

There was a traceback when posting the message after creating the manufacturing
order because we rendered the 'mail.message_origin_link' with an id as
origin and not a recordset.

opw 775295

As the function 'action_cancel' is multi, we cannot  set the value
'is_locked' to True by using '='. Because it will raise an error if self
contains more or less than 1 record.

To fix this we call the 'write' method which support all cases

This revision ensures that users cannot modify the current quantity or
enter lot numbers from the so-called manager view. This is because the
'tablet view' is not aware of the changes made in the manager view.

Closes #19933

The xpath references a span that doesn't exist anymore since https://github.com/odoo/odoo/commit/ddf2b21bdf38492ce075d4ae96bb9323c6ef59dd

It has been introduce in https://github.com/odoo/odoo/commit/2b3c8e6ca9777f6264ecb3d1510dd292ed30ab9f

This feature no longer exists since 3425752e

reported on github issue 19887

Previous to this rev., sometimes None could be added
to the list of _init_modules in the registry, this would
then be problematic in ir_http since a sorted would be
performed on this list, which works in py2 but in py3
None and string can't be compared implicitly.

Purpose:
    * when installing enterprise, postgresql refuse to install if there
    is a '+' char in the install path.
    * when uninstalling, the nssm and python dirs are not removed

Purpose: When uninstalling using the windows uninstaller, python and
nssm were left beyond. This fix removes the python and nssm dirs also.

Purpose: When installing postgresql under windows, the '+' character is
unallowed. This was creating a bug when using the windows installer the enterprise
version which derivate the install path from the version number.

Since it's not compatible with Python 2.

Closes #19910

And the SO item is readonly for sub task, to avoid
invoice twice the timesheet of a sub task.

The attachment should be create and linked to
the expense directly, and not on the expense
report (where it is readonly).

Create the sheet before opening a cached one avoid to
get error when computing computed field.

You do not have to specify it for themes

Closes #18039

IAP allow app publishers to charge for ongoing services. In that context, Odoo
acts mostly as a payment platform between the service user (client) and the service
provider (Odoo App developer).

Right column has been removed to have a clean checkout

- leftover real division errors
- typos in migration of values() calls in
  fffaf735

When the quickreate fail and a slow create is used instead, don't
display the error that happened as is done in kanban and calendar
(following 0f7f3fc2) quick create.

Commit f4200f37 aimed at avoiding 414 errors on too long uri.
But it brought up something else: on a new pos.config, the customer display html was not set due to that commit meddeling with the iframe's url.

This present commit forces the set up of the html field on create and write (according to the values, as usual)
the price to pay is to not being able to edit the html right away

Allow to order from several columns in inline tree views (x2many fields
in form views).

Support now that the read can receive id from calendar.event that
doesn't exists. And just ignore the inexisting ids.

Read(['start', 'start_datetime', 'start_date']) make the cache corrupt
for computed field start_datetime or start_date.

Now we don't read (for nothing ?) these 2 fields.

We can remove the skip for the test #500fabf1

Before this commit, a simple :
x = self.create({'name':'subject', 'allday': False, 'start': foo, 'stop': bar})

create randomly an event withtout start_datetime

Windows can be slower to start than that, sometimes.

Do not log a misleading "bad query" for cases where pg_database is not
accessible.

[FIX] website_sale_delivery: remove ES6 template literals in untested commit da3c561d

ES6 template literals are not supported in our testsuite / phantomjs
yet, which is why none of this branch's commit had passing tests >:-(

See #19841

Better English

Closes #19867