[MERGE]merge with main branch.

addons/web/common/http.py

addons/web/common/openerplib/main.py

addons/web/common/session.py

addons/web/controllers/main.py

addons/web/po/ar.po

addons/web/po/bn.po

addons/web/po/da.po

addons/web/po/de.po

addons/web/po/es.po

addons/web/po/es_EC.po

addons/web/po/et.po

addons/web/po/fr.po

addons/web/po/gl.po

addons/web/po/hr.po

addons/web/po/it.po

addons/web/po/nl.po

addons/web/po/nl_BE.po

addons/web/po/pl.po

addons/web/po/pt.po

addons/web/po/pt_BR.po