Also, simplify scripts while doing so.

These methods must not be called synchronously:
- they can break catalog by not being careful enough about other
  reindexations which may happen in parallel. See the serialization_tag
  mechanism for more.
- indexation gets executed in the security context of the user causing the
  call, which may lead to an indexation result different from what happens
  when indexation happens with an all-accesses user.

To remove the need to directly call immediate reindexation methods,
allowing to prevent further misuses of these.

Do not check portal's isIndexable, it is checked again in ZSQLCatalog.
Directly bind superclass callable instead of doing an extra getattr +
call.
Trivial python simplifications.
Assorted coding style improvements.
Drop unhelpful comments and docstrings.

- Allow superuser to get RSS ;
- Remove useless portal_skin=RSS paremeter.

Allow user to select which columns to display on module.
A new panel has been added for the UI.
The selectable column list is calculated from the columns and all_columns parameters.
Configuration is for now stored in the URL (as sort).

[erp5_pdm, erp5_trade] Fix bad field library field id. Rename ledger field library proxy field from my_ledger to my_view_mode_ledger.

[ERP5/tests/testERP5Commerce.py] quantity_unit/unit/piece category is used but it does not exist in this test. Add quantity_unit/unit/piece in afterSetUp.

To use non-existing category may lead an unexpected result. This time, getAcquiredCategoryList did not work correctly, then category values of products were not correctly indexed and test_17_getProductListFromWebSection failed.

Revert "[ERP5/tests/testERP5Commerce.py] Add erp5_configurator_standard_categories business template to provide quantity_unit/unit/piece."

This reverts commit 93c6b048.

erp5_configurator_standard_categories depends on too many business templates. I gave up using it.

[ERP5/tests/testERP5Commerce.py] Add erp5_configurator_standard_categories business template to provide quantity_unit/unit/piece.

To use non-existing category may lead an unexpected result. This time, getAcquiredCategoryList did not work correctly, then category values of products were not correctly indexed and test_17_getProductListFromWebSection failed.

/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.