[FIX] tools.translate: add missing imports after previous merge
[FIX] tools.translate: add missing imports after previous merge
MarkusTeufelberger/openobject-server,ovnicraft/openerp-server,gisce/openobject-server,splbio/openobject-server,vnc-biz/openerp-server,gisce/openobject-server,splbio/openobject-server,MarkusTeufelberger/openobject-server,gisce/openobject-server,vnc-biz/openerp-server,ovnicraft/openerp-server,splbio/openobject-server,MarkusTeufelberger/openobject-server