[Developers] changes to /business/mailing_address and /business/retail_location

[Darin Wilson]

Hi-

We've made a couple of minor changes to property keys of these two  
types:

1) /business/mailing_address/city_town is now /business/ 
mailing_address/citytown

2) /business/retail_location/location is now /business/ 
retail_location/address

This was to make the keys more consistent with other keys that were  
already in use. We apologize for any problems this change may have  
caused.

Darin