[IMP] move DataSetSearch#sort to DataSet#sort
[IMP] move DataSetSearch#sort to DataSet#sort
MarkusTeufelberger/openerp-web,vnc-biz/openerp-web,MarkusTeufelberger/openerp-web,splbio/openerp-web,splbio/openerp-web,gisce/openerp-web,splbio/openerp-web,vnc-biz/openerp-web,vnc-biz/openerp-web,gisce/openerp-web,MarkusTeufelberger/openerp-web,vnc-biz/openerp-web,gisce/openerp-web