[MERGE] merged the xrg branch, containing several small fixes

addons/account/account_move_line.py

addons/account/invoice.py

addons/account/test/account_report.yml

addons/analytic/analytic.py

addons/board/board.py

addons/caldav/wizard/calendar_event_export_view.xml

addons/caldav/wizard/calendar_event_import_view.xml

addons/claim_from_delivery/__init__.py

addons/claim_from_delivery/claim_delivery.py

addons/crm_profiling/crm_profiling.py

addons/delivery/stock.py

addons/email_template/email_template.py

addons/event/event.py

...s/hr_timesheet_invoice/test/test_hr_timesheet_invoice.yml

addons/l10n_ch/test/l10n_ch_report.yml

addons/product_expiry/product_expiry_demo.xml

addons/project/board_project_manager_view.xml

addons/purchase/stock.py

addons/sale/stock.py

addons/sale_margin/sale_margin.py