Changes to GET /team/:team_key/simple

the response property city became nullable for the status 200

the response property country became nullable for the status 200

the response property state_prov became nullable for the status 200

added the non-success response with the status 404

the response property city became required for the status 200

the response property country became required for the status 200

the response property nickname became required for the status 200

the response property state_prov became required for the status 200

added the media type application/json for the response with the status 401

the optional response header Last-Modified removed for the status 200

deleted the header request parameter If-Modified-Since

added the new optional header request parameter If-None-Match

added the media type application/json for the response with the status 200