framework_agreement: enable purchase pricelist

Because the module doesn't make sense if the user cannot see framework
agreements in the menu Purchases/Configuration/Pricelists.
add and propagate payment term
add and propagate incoterm
add clauses and shipment origin
bump version
remarks -> remark

for consistency with purchase_requisition_bid_selection
Merge pull request #42 from lepistone/improve_framework_agreement

Improve framework agreement