Migration to the new API

Didn't checked with delivery_carrier_deposit yet
Guewen, could you please return the browse partner as previous because the address_get() return this dict {'e': 1, 'd': 1, 'i': 1, 'l': 1, 'default': 1, 'r': 1, 'v': 1, 'y': 1} in my case. Each carrier implementation can use this method if it want, but for me browse is better.
Thanks