Base_getSectionUidListForSectionCategory : returns [-1] if no organisations are member of this section_category.

This way we can directly pass the returned value as section_uid= to
getInventory without worrying about the problem that if this section category
has no member, then section_uid parameter is ignored.

Calling an external python will prevent calling navigate from a python script
with a proxy role.

Follow accessor name change.

getLocalRolesGroupId does not exists on portal type.

Order Builder has same functionality as Devliery Builder.

Returning true allows to add movements to existing one, and this group shall
always separate them.

Show sorted list, as sorting does not impact sets equality, and, if possible,
format a list in human readable way.

Do not *reset* them, as it is normal to have more then one Open Sale Order
with same reference, as other coordinates (like validation_state) are used
to distinguish the documents.

smtp_url can be None, so do not treat it as string, allow to take different
actions (like doing nothing).

getMessageList shall not be available on normal mail host. It will be available
on one coming from live tests, so in such case die immediately.

This reverts commit 4e0c2786.

Catalog clearing functionality is required.

The promise will always fail, unless there is active system preference to fix.

This is yet another case of object being already removed.