[IMP] implement add and remove node functionality in vieweditor.
[IMP] implement add and remove node functionality in vieweditor.
MarkusTeufelberger/openerp-web,vnc-biz/openerp-web,splbio/openerp-web,vnc-biz/openerp-web,gisce/openerp-web,MarkusTeufelberger/openerp-web,vnc-biz/openerp-web,MarkusTeufelberger/openerp-web,splbio/openerp-web,gisce/openerp-web,gisce/openerp-web,vnc-biz/openerp-web,splbio/openerp-web