* Backport from 10.0 to 9.0: import odoo to import openerp, <odoo> to <openerp>, bring back <data> if noupdate=1, rename __manifest__.py to __openerp__.py, downgrade version number to 9.0.1.0.0, and make module installable.
* Re-add H.S.codes menu item under Sales-Product-Configuration.
(it had been removed to remove the reference to product module, but I don't understand that decision since this module by nature depends on product module anyway)
* Added module tests.
* flake8
* Encoding lines at the beginning of python files
Copy incoterms and destination country from SO to invoice when invoicing from SO
We need weight even when supplementary units is used
Small cleanups and enhancements
