Update order.php

Added custom fields code to controller in order to be shown on order_info.tpl
Update order_info.tpl

Added custom fields to the followings section on sale/order/info 
Order Details => Account Custom Fields
Payment Details => Address Custom Fields (Asociated to payment address)
Shipping Details => Address Custom Fields (Associated to shipping address)
Update order_info.tpl

reeplaced some tab errors by spaces acording to code rules
Merge pull request #2029 from CoverUp/master

Added missing custom fields on sale/order/info