[MERGE] forward port branch 9.0 up to caf78d22

addons/account/models/account_invoice.py

addons/account/models/res_config.py

addons/account/wizard/account_invoice_refund.py

...s/account_budget/report/analytic_account_budget_report.py

addons/account_budget/report/budget_report.py

addons/account_budget/views/report_analyticaccountbudget.xml

addons/account_voucher/account_voucher.py

addons/google_account/models/google_service.py

addons/sale_stock/sale_stock.py

addons/stock/models/stock_move.py

doc/cla/individual/NothingCtrl.md

doc/reference/views.rst

openerp/addons/base/ir/ir_model.py

openerp/models.py