[FIX] web_calendar: today button should return the date_part only
[FIX] web_calendar: today button should return the date_part only

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