Suggest service use separate response objects
Facets based on Country and Language use the iso2LetterCode

http://dev.gbif.org/issues/browse/POR-2206
http://dev.gbif.org/issues/browse/POR-1481
http://dev.gbif.org/issues/browse/POR-2232
http://dev.gbif.org/code/cru/CR-POR-169