[IMP] make field read-only if multi-companies is not installed
[IMP] make field read-only if multi-companies is not installed
splbio/openobject-server,MarkusTeufelberger/openobject-server,ovnicraft/openerp-server,gisce/openobject-server,gisce/openobject-server,MarkusTeufelberger/openobject-server,gisce/openobject-server,ovnicraft/openerp-server,MarkusTeufelberger/openobject-server,splbio/openobject-server,splbio/openobject-server