[FIX]Fixed the issue of kanban not shows exception message, instead it shows static message, rpc fail already shows error popup so there is not need of special alert.
[FIX]Fixed the issue of kanban not shows exception message, instead it shows static message, rpc fail already shows error popup so there is not need of special alert.

akretion/openerp-web,akretion/openerp-web,akretion/openerp-web