[accounting] Update Report Script to be consistent with handling at_date with the others and to comply with RJS requirements

[erp5_accounting_renderjs_ui_test] Move report tests to top-level portal_tests because it is only accessible level by FunctionalTest

-  ensure serializability of such params
-  unfortunately construct Selection with given params since we do not use ReportSection.pushReport

/reviewed-on nexedi/erp5!538

This reverts commit 6687e7e0.

Test for bugfix /#/bug_module/20171208-5E8D43

/reviewed-on nexedi/erp5!529

[erp5_base] Add following movement groups to Order Builder. Order Builder should be able to use the same movement groups as Delivery Builder.

First Causality Movement Group
Invoice Movement Group
Previous Causality Movement Group
Property Grouping Movement Group

[erp5_base] Fix Delivery_getLedgerItemList to make it work with non-Delivery Type portal type documents.

Internal Order
Internal Packing List
Internal Trade Condition
Purchase Invoice
Purchase Order
Purchase Packing List
Purchase Trade Condition
Returned Purchase Order
Returned Purchase Packing List
Returned Sale Order
Returned Sale Packing List
Sale Invoice
Sale Order
Sale Packing List
Sale Trade Condition

[erp5_pdm] Fix proxy fields of order_quantity_unit and time_quantity_unit. Since they are derivations from quantity_unit, "quantity_unit" is needed in the path in the path.

This reverts commit 82c5ae6f.

Add a test to check that hidden rows action update the listbox head

/reviewed-on nexedi/erp5!536

[erp5_core] Allow developers to choose a larger value for the preference of number of lines displayed in listboxes.

[erp5_pdm] Display validation state title of Quantity Unit Conversion Group and Quantity Unit Conversion Definition.

A lot was found with pylint.