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 !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.