these actions are not ready to be used by end users

Persons created before the introduction of ERP5 Login and user_id will only
have a user_id after migration if they were already user before migration,
otherwise they will not have a user_id and creating assignments and ERP5 Login
for this person creates a user which can not log in the system.

To make it possible for these persons to login anyway, we ensure person has a
user id when validating a login

This is bc67c2c4 again, but with a proxy role
on the interaction workflow and a non regression test to cover the problem with
the first version of that commit.

repair tests after nexedi/erp5!1207

See merge request nexedi/erp5!1260

Most parts of this patch come from wendelin, plus the tests and some fix.

See merge request nexedi/erp5!1252

erp5_jexcel_editor is now installed by this profile, since it's a
dependency of erp5_officejs_jquery_app

coding style test is failing, this business template cannot use
WebSection as a prefix for skin unless Web Section portal type exists.
Depend on erp5_web so that erp5_web gets installed in tests.

User must be informed that such query is not handled.

Integrate Jexcel editor to Web Table app

See merge request nexedi/erp5!1207

Try to get the cropper options from previous device ID

Most parts of this patch come from wendelin, plus the tests and some fix.

testFunctionalRunMyDocSample was moved to erp5_run_my_doc (1d700b09) but it
was a mistake and should have been in erp5_user_tutorial where the Test Page
is defined.

- clone action added

Default printout (used for order, packing lists, invoices etc) was raising
error for deliveries with cells when the resource descrption was only \n

See merge request nexedi/erp5!1253

erp5_user_tutorial_ui_test: dependency on erp5_accounting was missing (account_module).

runUnitTest: log_directory is imported from Unit Tests and thus must be global to avoid pylint error.