Autoselect correct site-code by geocoordinates during upgrade and by gluon-neighbour-info
hourly.
One can specify a default site within site.conf, if the coordinates do not match to any site defined within extra/geo.json.
site_select.geo_default_site : optional
- ``'ffho_uml'``
File with geojson format. The corresponding site_code has to be defined within properties
section as "site_code": "ffho_abn"
.