anchor.diff:                "forecasts": [
                   {
                     "period": "PT24H",
  -                  "validFrom": "2017-05-10T00:00:00Z",
  -                  "validUntil": "2017-05-11T00:00:00Z",
  +                  "validFrom": "2017-05-10T00:00:00+01:00",
  +                  "validUntil": "2017-05-11T00:00:00+01:00",
                     "forecastLocation": [ -0.1248, 51.5081 ],
                     "airPollutionIndex": 3,
  -                  "publishedAt": "2017-05-10T05:00:00Z"
  -                },
  -                {
  -                  "period": "PT24H",
  -                  "validFrom": "2017-05-11T00:00:00Z",
  -                  "validUntil": "2017-05-12T00:00:00Z",
  +                  "publishedAt": "2017-05-10T06:00:00+01:00"
  +                },
  +                {
  +                  "period": "PT24H",
  +                  "validFrom": "2017-05-11T00:00:00+01:00",
  +                  "validUntil": "2017-05-12T00:00:00+01:00",
                     "forecastLocation": [ -0.1248, 51.5081 ],
                     "airPollutionIndex": 5,
  -                  "publishedAt": "2017-05-10T05:00:00Z"
  -                },
  -                {
  -                  "period": "PT24H",
  -                  "validFrom": "2017-05-12T00:00:00Z",
  -                  "validUntil": "2017-05-13T00:00:00Z",
  +                  "publishedAt": "2017-05-10T06:00:00+01:00"
  +                },
  +                {
  +                  "period": "PT24H",
  +                  "validFrom": "2017-05-12T00:00:00+01:00",
  +                  "validUntil": "2017-05-13T00:00:00+01:00",
                     "forecastLocation": [ -0.1248, 51.5081 ],
                     "airPollutionIndex": 3,
  -                  "publishedAt": "2017-05-10T05:00:00Z"
  -                },
  -                {
  -                  "period": "PT24H",
  -                  "validFrom": "2017-05-13T00:00:00Z",
  -                  "validUntil": "2017-05-14T00:00:00Z",
  +                  "publishedAt": "2017-05-10T06:00:00+01:00"
  +                },
  +                {
  +                  "period": "PT24H",
  +                  "validFrom": "2017-05-13T00:00:00+01:00",
  +                  "validUntil": "2017-05-14T00:00:00+01:00",
                     "forecastLocation": [ -0.1248, 51.5081 ],
                     "airPollutionIndex": 3,
  -                  "publishedAt": "2017-05-10T05:00:00Z"
  -                },
  -                {
  -                  "period": "PT24H",
  -                  "validFrom": "2017-05-14T00:00:00Z",
  -                  "validUntil": "2017-05-15T00:00:00Z",
  +                  "publishedAt": "2017-05-10T06:00:00+01:00"
  +                },
  +                {
  +                  "period": "PT24H",
  +                  "validFrom": "2017-05-14T00:00:00+01:00",
  +                  "validUntil": "2017-05-15T00:00:00+01:00",
                     "forecastLocation": [ -0.1248, 51.5081 ],
                     "airPollutionIndex": 3,
  -                  "publishedAt": "2017-05-10T05:00:00Z"
  +                  "publishedAt": "2017-05-10T06:00:00+01:00"
                   }
                 ]
               }
  
positive.code:     + Parameters
          + locatedAt: `-0.11,51.51` (string, required) - longitude,latitude;
          + fields: `pollenForecastRegionName,issuedAt,pollenIndex` (string, required) - comma separated list of [pollenForecastRegionName,issuedAt,pollenIndex] or single value;
          + timeZone: `Europe/Paris` (string, optional) - Time zone refers to the IANA Time Zone Database (TZDB).
  
  + Response 200 (application/json)
  
  
negative.code:               "forecasts": [
                  {
                    "period": "PT24H",
                    "validFrom": "2017-05-10T00:00:00Z",
                    "validUntil": "2017-05-11T00:00:00Z",
                    "pollenForecastRegion": "SE",
                    "pollenForecastRegionName": "London & South East England",
                    "pollenIndex": "Moderate",
                    "issuedAt": "2017-05-10T05:45:57+01:00"
                  },
                  {
                    "period": "PT24H",
                    "validFrom": "2017-05-11T00:00:00+01:00",
                    "validUntil": "2017-05-12T00:00:00+01:00",
                    "pollenForecastRegion": "SE",
                    "pollenForecastRegionName": "London & South East England",
                    "pollenIndex": "Moderate",
                    "issuedAt": "2017-05-10T05:45:57+01:00"
                  },
                  {
                    "period": "PT24H",
                    "validFrom": "2017-05-12T00:00:00+01:00",
                    "validUntil": "2017-05-13T00:00:00+01:00",
                    "pollenForecastRegion": "SE",
                    "pollenForecastRegionName": "London & South East England",
                    "pollenIndex": "Moderate",
                    "issuedAt": "2017-05-10T05:45:57+01:00"
                  },
                  {
                    "period": "PT24H",
                    "validFrom": "2017-05-13T00:00:00+01:00",
                    "validUntil": "2017-05-14T00:00:00+01:00",
                    "pollenForecastRegion": "SE",
                    "pollenForecastRegionName": "London & South East England",
                    "pollenIndex": "Moderate",
                    "issuedAt": "2017-05-10T05:45:57+01:00"
                  },
                  {
                    "period": "PT24H",
                    "validFrom": "2017-05-14T00:00:00+01:00",
                    "validUntil": "2017-05-15T00:00:00+01:00",
                    "pollenForecastRegion": "SE",
                    "pollenForecastRegionName": "London & South East England",
                    "pollenIndex": "Moderate",
                    "issuedAt": "2017-05-10T05:45:57+01:00"
                  }
                ]
              }
  
  ### Return GeoJson file with regions definitions [GET /pollen/regions.geojson]
  
  This feature collection contains list of geometry shape like as `Polygon` and `MultiPolygon`, each has properties `regionId` and `region`
  
  + Request
  
      + Headers
  
              Authorization: Bearer eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiYWRtaW4iOnRydWV9.EkN-DOsnsuRjRO6BxXemmJDm3HbxrbRzXglbN2S4sOkopdU4IsDxTI8jO19W_A4K8ZPJijNLis4EZsHeY559a4DFOd50_OqgHGuERTqYZyuhtF39yxJPAjUESwxk2J5k_4zM3O-vtd1Ghyo4IbqKKSy6J9mTniYJPenn5-HIirE
  
  + Response 200 (application/vnd.geo+json)
  
      + Body
  
              {
                "type": "FeatureCollection",
                "features": [
                  {
                    "type": "Feature",
                    "properties": {
                      "regionId": "TA",
                      "region": "Central, Tayside & Fife"
                    },
                    "geometry": {
                      "type": "Polygon",
                      "coordinates": [
                        [
                          [
                            -2.871093749999943,
                            56.98291015625017
                          ],
                          [
                            -2.808898925781193,
                            56.95727539062506
                          ],
                          [
                            -2.751708984374943,
                            56.95452880859392
                          ],
                          [
                            -2.871093749999943,
                            56.98291015625017
                          ]
                        ]
                      ]
                    }
                  }
                ]
              }
  