I pushed the first version of the forecast.io backend to the forecast.io branch. Some points need to be adressed before merging into master:

• double-check to implement the maximum possible of the iface in condition
• min- and max-temperature for daily data
• astronomy for daily data
• remove debugging code and commented out code
• restrict return value of Fetch to the requested number of days
• add language flag
• add call to time machine api to get "forecast" for the passed time of the current day
• (optional) is there a better possibility to specify location other than a lat,lon string?