mod/merge lucadelu

Conflicts:
	yr/libyr.py
	yr/utils.py
mod/merge lucadelu.examples

Conflicts:
	yr/examples/forecast_csv.py
mod yr/libyr.py ~> split line
Hourly Forecast

Mod. for different forecast links
Example for hour_by_hour_forecast
Bug Fix: Utils.Cache.is_fresh
prepare to merge
1.4.0
added support to CSV output and examples
mod/merge lucadelu
mod/merge lucadelu.examples
replace the two functions to write csv with one to write csv and two to return a list of values
check if the list of values is empty: it happen for some parameters whit this coordinates 10.00429, 45.61886, 213
fix csv examples