[FIX] base: incorrect code and locale for Bosnian

Stems from prebiblical commit f083aa2.

Fixes #3480
[MERGE] forward port of branch 7.0 up to 65d92da
[FIX] point_of_sale: the order should not be displayed in the print screen, and the order should not reprint itself automatically after the first time we go on the print screen
[MERGE] forward port of branch saas-3 up to d36eee9
Merge branch '8.0' of https://github.com/odoo/odoo into 8.0-linux64