[MERGE] forward port of branch saas-6 up to 648a558d

addons/account/account_invoice.py

addons/account/account_invoice_view.xml

addons/account/account_move_line.py

addons/account/wizard/account_reconcile_view.xml

addons/account_followup/account_followup.py

addons/account_followup/report/account_followup_print.py

addons/account_followup/tests/test_account_followup.py

addons/account_payment/account_move_line.py

addons/account_payment/account_payment_view.xml

addons/analytic/views/analytic_view.xml

addons/board/board.py

addons/crm/crm_lead.py

addons/event_sale/wizard/event_edit_registration.xml

addons/hr_expense/views/report_expense.xml

addons/hr_timesheet/hr_timesheet_view.xml

addons/hr_timesheet_invoice/hr_timesheet_invoice_view.xml

addons/hr_timesheet_sheet/hr_timesheet_sheet.py

addons/hr_timesheet_sheet/report/hr_timesheet_report.py

addons/im_chat/__openerp__.py

addons/im_chat/static/src/js/im_chat.js