[FIX] Propagate context to kanban's add_group() action
[FIX] Propagate context to kanban's add_group() action

gisce/openerp-web,splbio/openerp-web,MarkusTeufelberger/openerp-web,gisce/openerp-web,MarkusTeufelberger/openerp-web,splbio/openerp-web,gisce/openerp-web,splbio/openerp-web,MarkusTeufelberger/openerp-web