add a group menu_configuration in the admin rights

- restored icon of modules account_check_writing and l10n_us_check_printing
- removed payment_type from account.payment tree/view since those views are already used with a domain and the type can be inferred from the name given by a sequence
- account.payment field company_id wasn't stored and, so, 'Group By' failed
- fixed extensibility of register payment wizard through method get_payment_vals()
- since register payment fully pays selected invoices, the amount should be readonly
- if payment journal is called 'Payment Mode', payment_method should not be called 'Payment Mode'
- improved batch deposit template
- check memo length when registering a check
- in check printing, sort invoices by due date
- checks get a check number attributes when registered from the payment wizard as well
- when a module extends a method from account.payment it should be careful to check the selected payment method

[FIX] web: form_relational_widgets.js: when a user create a line in a one2many field, the dataset_changed is triggered before the blur of the editable list. Some values (with required for eg) are not valid and the on_change is not triggered, change commit_value to wait the trigger and keep the deferred.

[IMP] hr, hr_*, project, sale, sales_team, stock: in dashboards, add color picker, add domains on reports and style improvements

[ADD] account, account_voucher, mrp, purchase, stock : new mobile-friendly kanban for one2many in form view

[ADD] account_online_sync and account_plaid: automatically sync your bank accounts using plaid interface, through a cron job

[ADD] account_check_writing and l10n_us_check_printing: payments by checks based on account.payment object. (let's pop the champagne Fabrice :-) )

DateTime insert data in UTC, constrain is in the timezone of the server.

+ remove js from account_invoice_view

this closes #277

Various cosmetics and traceback fixes

[FIX] account: fix transfer_account in settings + create sale/purchase tax template for l10n_generic_coa

[FIX] account: add constraint to ensure that receivable and payable account are reconciliable + fix l10n_be CoA

This commit introduces a new view type, the timeline view. This view is
intended to display messages like the previous chatter. This is now a view
like the form or list view. Like other views it will be possible to have
custom templates for some specific needs, allowing customization.

[IMP] mail: the value tracking is modified. Previously messages were created
containing the modified values. Those values are now stored, using a new
model mail.tracking.value. The message body is dynamically build based on
the values. Tests have been updated.

This version is temporary. Indeed two main modifications will come in a short
future :

 - the new design will improve the display
 - the slack mode will change the way the Inbox and notifications are managed

All glory to the Hypnotoad.

Special thanks to Valerie Pirenne (vpi), Jerome Maes (jem) and Richat Mathot
(rim) that did not code but said a lot of things. Martin Trigaux (mat) did
nothing, a bit like for the slides modules, but he is busy sending emails.

[FIX] website_livechat: Pass correct name of class in super method to solve traceback on publish button

Now,
- event contains the HTML badge fields and the report (and report templates) to print badges
- event_sale add the ticket type on badges
- website_event allow the edition of badge throught website editor.
When the editor will be available in backend, event will be allow to edit badge report, so the action should be moved from website_Event to event module.