Server caching dark sky #2
Description
Dark Sky free API limits us to 1000 hits per day.
So it would be good to cache all API calls made at the server. If the data for a senior location has already been cached then server that instead of going back to the original data.
In addition add running count of API calls to Dark sky per day. If a 11.30pm there are X requests left pick a sensor and cache its weather data.