make fields readonly in more states
change consignee only in draft
change budget fields only in draft
remove duplicated field
make incoterm and carrier readonly when not draft
fix: consignee does not depend on logisic_order

The dependency is the other way round. Duplicate the states, then.
more states readonly
redefine LO_STATES locally

because logistic_order depends on logistic_consignee
Merge pull request #79 from lepistone/more-readonly-states

logistic order: more readonly states