[FIX] odoo.py dont force push simple

Everybody should upgrade to v2
[IMP] account.invoice.report: default `Year` filter should include draft invoices without `date`

This affects the result when Draft invoices are included,
so that they actually appear even without any `date` value,
as they are often meant for the current year.
[IMP] google_drive: `google_drive_client_id` param should only be readable by uid 1

It is an internal ID that the user or web client
never needs to read, it is used only server-side.
[FIX] don't display separators in the drawer

now, separators (defined by the tag 'group'!) are only displayed
in the autocomplete and not in the searchview drawer
[IMP] remove useless code

the 'first' attribute is not used anymore
[FIX] fix tests in autocompletion
Merge remote-tracking branch 'odoo/master' into master-autocompletion-ged