[FIX] sale: copy sales team on the invoice from a sale order

Follows 31a01ea, propagation of some fields from sales orders to invoices (when
created on deliveries) have been added but it missed the section_id field (Sales Team).
Fixes #4155
[FIX] base: address layout css

The double % was not understood by some browsers (e.g. Firefox).
No need for escaping in this block.
Fixes #4142
Merge branch '8.0' of https://github.com/odoo/odoo into 8.0-win32