[FIX] survey: mess with JS loading

Since yesterday, JS bundles are now loaded at the end of the webpage.
Old-style modules that hardlink js code in the <head> section are now
broken since they use jQuery's $.
[FIX] website_sale: retrieve transactions as superuser

Due to additional security rules, the transactions made as public user will have a new partner_id. The transaction needs to be retrieved as admin to be set in the context.
The operations in payment_get_status are made as superuser but the session_id is checked in the assert above to avoid url manipulation.
Forward port of branch saas-3 up to rev 2ee1843
[IMP] website_sale: do not show transaction on sale order

This object is quite technical and has not purpose to be displayed on a sale order.
Forward port of saas-5 branch up to rev e04a87e