[MERGE] Forward-port saas-4 up to 5ceded9d

addons/auth_oauth/controllers/main.py

addons/auth_signup/res_users.py

addons/document/document.py

addons/hr_holidays/hr_holidays.py

addons/l10n_multilang/__openerp__.py

addons/mail/static/src/css/mail.css

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

addons/mass_mailing/models/mass_mailing.py

addons/project_issue_sheet/project_issue_sheet_view.xml

addons/stock/stock.py

addons/survey/survey.py

addons/web_linkedin/web_linkedin.py

addons/website/models/ir_http.py

addons/website/models/website.py

addons/website/tests/test_converter.py

addons/website/views/website_templates.xml

addons/website_crm/controllers/main.py

addons/website_crm_partner_assign/controllers/main.py

addons/website_customer/controllers/main.py

addons/website_event/controllers/main.py