Don't set reference_type field on account.move required=True, because it
causes a lot of problems in other modules that don't depend on this one.
Setting it as required in the view is enough.
Update move line generation to get transfer account from bank journal
Update payment mode configuration accordingly (3 fields removed)
Several improvements in payment order tree and form view
Steps to reproduce
------------------
* Create a payment mode with "Link to Bank Account" = "Variable".
* Select several journals.
* Create a payment order with that payment mode.
* Save.
* Go to other menu and come back to payment order.
* Try to select a journal: the list is empty.
Fixes#544
- when manually encoding a payment line, get company currency as default currency
- Search on payment order numbers
- Direct search on bank journal name in payment orders
- remove widget="selection" on account.payement.mode : this object is rarely modified, so widget='selection' is not a time saver, but we miss the HTML link, which can be pretty convenient to check the configuration.
* FIX: Bug #353 crash when selecting a payment mode that has a variable link to a bank account
* FIX: Add 'post_move' option on account.payment.mode with default True, to keep the previous behavior
* IMP: Explicit error when bank account is missing on bank journal
* IMP: Add field default_date_prefered on payment mode.
Improvements include:
- full re-organisation of modules and big re-organisation of the code
- simplification of the code related to the fact that support for direct debit is now in t
he base module, not added by an optional module account_direct_debit (module was removed)
- new design of the wizard to select move lines to pay
- support for non-SEPA file transfer-
- support for German direct debit SEPA files (fixes bug #129)
- remove workflow of payment.order
- add wizard of selection of move lines to pay
