Odoo 9.0 - en to nb translation catalogue (4 entries)

note: module: gamification_sale_crm
en: Customer Refunds
nb: Kreditnota

note: module: gamification_sale_crm
en: New Opportunities
nb: Nye muligheter

note: module: gamification_sale_crm
en: Total Invoiced
nb: Totalt fakturert.

note: module: gamification_sale_crm
en: days
nb: dager
