[MOD] Required changes after PR done in <sale_product_variants_types>
[MOD] Fix pep8
[MOD]
Update sale_order.py
Update __openerp__.py
[IMP quality_control_samples]
Merge pull request #194 from oihane/8.0-attributes

[MOD] sale_product_variants_types
Merge pull request #221 from alfredoavanzosc/odoomrp-quality_control_samples

[IMP quality_control_samples]