Metadata and list of keys in properties are not the same in response to request for meteodata

[sbhoek]

This issue is about requests like this:
https://agrodatacube.wur.nl/api/v2/rest/meteodata?output_epsg=4326&meteostation={{meteostation}}&fromdate=20151130&todate=20151101&page_size=25&page_offset=0
as documented here:
https://documenter.getpostman.com/view/3284162/TVeqd7aa#97c4829a-a90f-44c7-b03f-10984ffea1e4

Normally JSON is returned with both metadata and features. In the features, one can find a dictionary with properties. One would expect that the metadata would contain similar information as the properties. This is not the case and this can cause confusion. The attached file shows the difference in detail.
metadata_vs_keys.txt