Fix broken module when the local time changes during daily forecasts.

[morian]

This patch aims to fix issue #47.

It replaces the whole Date processing using moment for daily forecasts. Processing is also simplified to avoid looping around the forecast data multiple time.

The selected time of the target day used for the daily forecast is no longer set to 12:00 but selected in the middle of forecast data.

[bugsounet]

Hi, thanks for this PR I have not think to this :)

I will test it before merging

[morian]

That was fast, thanks!