[FIX] css: move overflow auto from body to webclient to prevent some element from triggering anoter scrollbar
[FIX] announcement_bar: computed height was wrongly computed
[FIX] website_sale: only display payment method from the same company as the order
[FIX] correctly expand many2ones in autocompletion

The ManyToOneField widget evaluated the domain before doing a name_search,
but the domain should not be evaluated client side, because it can only
be static at that point. It caused crash in autocompletion because
some variables could not be found in the context (see stage_id in
project.task for example)
[FIX] event: subscribe customer error

The onchange methods needs to work with browse records and address_get returns an id. Fixes #2484
[IMP] fields: reset decimal precision on new-style fields

When a decimal_precision record is created/modified, the float fields of the
models in the registry must be reset.  This was done on old-API columns only.
It is now handled by the new-API fields.