[FIX] web: view_manager: correctly return rejected deferred
[FIX] web: view_manager: correctly return rejected deferred

The problem was that the action manager wasn't notified at all when something
went wrong with the view manager as the deferred returned by appendTo was in
that case never resolved nor rejected.

optima-ict/odoo,sysadminmatmoz/OCB,laslabs/odoo,sysadminmatmoz/OCB,hip-odoo/odoo,Elico-Corp/odoo_OCB,bplancher/odoo,hip-odoo/odoo,hip-odoo/odoo,syci/OCB,stephen144/odoo,storm-computers/odoo,hip-odoo/odoo,microcom/odoo,Elico-Corp/odoo_OCB,stephen144/odoo,storm-computers/odoo,Elico-Corp/odoo_OCB,optima-ict/odoo,storm-computers/odoo,bplancher/odoo,storm-computers/odoo,ygol/odoo,dfang/odoo,optima-ict/odoo,ygol/odoo,bplancher/odoo,laslabs/odoo,ygol/odoo,dfang/odoo,stephen144/odoo,bplancher/odoo,laslabs/odoo,microcom/odoo,syci/OCB,sysadminmatmoz/OCB,microcom/odoo,hip-odoo/odoo,sysadminmatmoz/OCB,sysadminmatmoz/OCB,syci/OCB,bplancher/odoo,syci/OCB,optima-ict/odoo,optima-ict/odoo,laslabs/odoo,microcom/odoo,sysadminmatmoz/OCB,Elico-Corp/odoo_OCB,sysadminmatmoz/OCB,hip-odoo/odoo,storm-computers/odoo,storm-computers/odoo,microcom/odoo,stephen144/odoo,bplancher/odoo,syci/OCB,laslabs/odoo,syci/OCB,optima-ict/odoo,dfang/odoo,ygol/odoo,Elico-Corp/odoo_OCB,Elico-Corp/odoo_OCB,microcom/odoo,dfang/odoo,dfang/odoo,stephen144/odoo,dfang/odoo,laslabs/odoo,stephen144/odoo,ygol/odoo,ygol/odoo,ygol/odoo