[IMP] make legacy dashboard map onto a 2-1 layout by default, rather than 1-1
[IMP] make legacy dashboard map onto a 2-1 layout by default, rather than 1-1

Since 'legacy' dashboards generally have just small graphs on the right-hand side, give then a third of the dashboard and give the lists (left-hand side) two thirds
gisce/openerp-web,MarkusTeufelberger/openerp-web,MarkusTeufelberger/openerp-web,gisce/openerp-web,vnc-biz/openerp-web,splbio/openerp-web,gisce/openerp-web,vnc-biz/openerp-web,MarkusTeufelberger/openerp-web,splbio/openerp-web,vnc-biz/openerp-web,vnc-biz/openerp-web,splbio/openerp-web