zipcode 6.x-2.10-rc1

#629174: Italian zip codes
#1174096: Token Integration : the value is not populated.
#1219140: Updated regex for Canadian postal codes
#1418974: Coding standards / code review
#1419028: Support node_import module

Important note: If you use the node_import module and have created a zipcode.inc file in that module as previously suggested by the Zipcode documentation, you must remove that file when installing this version. That code is now included in Zipcode.