[IMP] restaurant: some linting for the OCD among us
[FIX] pos_restaurant: please stop forward porting the obsolete 'restaurant' module. It has been renamed pos_restaurant
[FIX] pos_restaurant: fix bad forward porting merge
[FIX] pos_restaurant: properly merging the notes feature that allows custom notes on orderlines (Think Raw/Well-Done)
[FIX] point_of_sale: by default cash is returned on the payment method with cash control. If there is no such method, return it on the the first cash payment method
[ADD] website_slides: new module doing stuff. I swear.

Courtesy of a lot of people including Mantavya Gajjar(mga-odoo), Ravi Gadhia(rga-odoo),Vijay Patel(vip-odoo), Pariket Trivedi(ptr-odoo)
[REVIEW] Pre-merge review. This commit will have to
be squashed, but not before the end of the review process.