[MERGE] forward port of branch 7.0 up to a86dfb80

addons/account/account_invoice.py

addons/account/report/account_invoice_report_view.xml

addons/account/wizard/account_fiscalyear_close.py

addons/account_voucher/account_voucher.py

.../account_voucher/wizard/account_statement_from_invoice.py

addons/l10n_be/account_financial_report.xml

addons/mail/static/src/xml/mail.xml

addons/web_kanban/static/src/js/kanban.js

openerp/report/report_sxw.py