Changes to the hotel chains format

We changed the format of the Hotel Chains attribute.
The old format looked like this:

1. "Hotel Attributes": {
2.       "Chain": "Hilton Hotels"
3.     }

A string with the formal name, as a global attribute in the API reply.
The new format looks like this:

1. "Hotel Attributes": {
2.           "Chain": [
3.             {
4.               "gds_code": "HH",
5.               "Name": "Hilton Hotels",
6.               "eva_code": "EPC-47"
7.             }
8.           ]
9.         }

The new format allows for simpler integration with client databases.
We have also moved the chain attribute to be location-related and it is no longer a global attribute.
This allows Eva to address complex itineraries, such as "2 nights in rome. hilton. 3 nights in paris. sheraton"

The changes will be part of the next revision of the API.

To preview the change and ease the integration we added a new "from future" request attribute.
Add ffi_chains to the request query and the API reply will contain the new chain format.

Example:
http://freeapi.evature.com/v1.0?site_code=a_site_code&api_key=an_api_key&ffi_chains&input_text=ny%20hilton