Comment 4 for bug 636899

@Jay
Please make sure that the base_contact module integrates well
I think there are some issues left when other modules are using partner.address and are not aware of the changes made by base_contact
I suggest that the unused data fields are replaced by function fields fetching the "best guess" contact (lowest sequence or id number)
Many references to address + contact must be replaced by references to contact which is not done.