Wrapping a method in a workflow method should not change the
publishable state the method.
If the original method is not publishable, wrapping it in a workflow
method should not make it publishable.  If the original method is
publishable, then the wrapped method should still be publishable.

This was always intended to work like this, as we can see in the code
comment in `WorkflowMethod.__init__` but was not properly tested and got
broken at some point.

It's important to restore the behavior, because workflow methods such as
`validate` should not be published, users must only be able to use the
user interface transitions freely, workflow methods transitions are
only available if developer expose them in a script - and perform the
necessary consistency and security checks in that script.

Only "user action" methods needs a security declaration.

If we rename a script used as external validator, we don't have way of detecting that this script might be used, so add to the "static checks" a check that for every field referencing an external validator, this validator can actually be traversed.

/reviewed-on !1031

Check that script exists.

Like a real-world user.

__ac_name & __ac_password are only useful to get a cookie, so only use them
when the test is actually expecting a cookie.

One inline javascript snippet less.

ZODB Components: Preparation of erp5_base migration from FS: Fix pylint no-name-in-module on newTempXXX (04b49859).

Change upgrader internal API to use `filter_dict` instead of `filter`
which is a builtin.
Remove a lot of unused code in extensions

/reviewed-on !1014

ZODB Components: Preparation of erp5_base migration from FS: Fix pylint no-name-in-module on newTempXXX (04b49859).

ZODB Components: BusinessTemplate: On migration dialog, ignore source files not available anymore (ex: change branch).

Test should not depend on external websites, we already use erp5.com for
some other tests, so let's use it also for RSS.

/reviewed-on !1028

Deleting matrix cells with manage_delObjects is not a good solution, as
this breaks matrix index consistency.
Also, call isBasePricePerSlice rather than introspecting wrapped method
arguments - the only wrapped method is _setBasePricePerSlice anyway !
Also, explicitly trigger SupplyCell_updateSliceBasePrice as it depends on
isBasePricePerSlice value at line level, and it just changed, and cell-level
interaction workflow does not trigger on line changes.
Also, get rid of a trivial local variable.
Also, fix the exception expected from list.index .
Also, raise if multiple quantity criterion are somehow found.

When server replies with a non XML content type feeparser attempt to
parse anyway, but set the bozo flag.

https://universal-feedparser.readthedocs.io/en/latest/#handling-incorrectly-declared-media-types

If parsing fail because the feed is not a valid RSS XML stream,
feedparser fail in other ways, so we can safely ignore this error.

This should repair recent failures with testFeedReaderGadget now that le
monde changed configuration on their website:

     $ curl -sD -  -o /dev/null https://www.lemonde.fr/rss/une.xml | grep Content-Type
     Content-Type: text/html;charset=UTF-8

/reviewed-on !1027

See b678a025

Introduce the object_jio_jump action category to mark all compatible actions.

erp5_xhtml_style supports object_jio_jump.

A correct redirection is needed to jump in both UI.

ERP5JS will display modules on the current document context,
as if the jump was instead a object_view action.