Disable lint W503 (break around binary operators) because doesn't conform PEP-8

[luisg123v]

Lint W503 is triggered when a line break is before a binary operator, instead of being after, e.g.:

if (condition_1
        and condition_2):

However, PEP-8 has updated its position regarding this formatting, and it explicitly recommends quite the opposite, which is breaking before rather than after binary operators, like in the above example.

Therefore, the lint W503 should be disabled, because it goes against PEP-8 recomendations.

For more information, see:
PyCQA/pycodestyle#498

[luisg123v]

CC @moylop260

[moylop260]

It was fixed from #546

[luisg123v]

@moylop260
As you can see in This Travis from OCA/pylint-odoo#196, the lint W503 is being triggered.

Doesn't it mean this is still valid? Sorry if I'm misunderstanding

[moylop260]

OCA/pylint-odoo is not using MQT project.
You can ignore these checks from travis.yml:

• https://github.com/OCA/pylint-odoo/blob/7829e215cc40df3ac63fe5ded05b17f54740f5de/.travis.yml#L49