Address module with company and vatid (EU 25)

Hi all,

I‘m currently moving our old site to drupal 4.7 w/ ecommerce. Beta will be up soon. We mainly sell our stuff to business customers in Europe.

Enclosed you‘ll find a patch for the address module with following modifications:

1. Re-arranged fields
2. Added company field
3. Added vat id field (is needed for intra EU sales)
4. Vat id field is only shown when country is one of EU 25
5. Set province/region to optional
6. Added address_detail_view function which is called from address_checkoutapi case 'review'

Comments:
ad 1: Personal preference (Should be changeable via settings in the future)
ad 3: I put the vat id field into ec_address because the id is bound to the company and location.
ad 6: Needed for reliable tax calculations and exempts. User should not be able to change address via popup at this stage

DB modifications:

ALTER TABLE `ec_address` ADD `company` VARCHAR(216) NOT NULL AFTER `lastname`, ADD `vatid` VARCHAR(24) NOT NULL AFTER `company`;

Todo:
Future versions of the tax module can use the vatid fields from ec_address.

This is my first input, please review carefully.

Thank you all for the good stuff

Kurt