[IMP] selection of fields to aggregate in read_group
[IMP] selection of fields to aggregate in read_group

vnc-biz/openerp-server,splbio/openobject-server,splbio/openobject-server,MarkusTeufelberger/openobject-server,vnc-biz/openerp-server,gisce/openobject-server,MarkusTeufelberger/openobject-server,ovnicraft/openerp-server,ovnicraft/openerp-server,gisce/openobject-server,gisce/openobject-server,splbio/openobject-server,MarkusTeufelberger/openobject-server