[FIX]tools, translate: more tolerant code, if the model does not exist anymore (impossible to syncrhonize translation terms if there are ir_model_fields with non-existing models)
[FIX] orm: browse() do not prefetch deprecated fields
Merge branch 'master' of bzr::lp:~openerp/openobject-server/saas-2 into ocb-saas-2