[imp] refactoring of context/domain + optimisations + added context in on_change
[imp] refactoring of context/domain + optimisations + added context in on_change


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