Script in messages/index.js
##Weather (Intent: getWeatherData)
Use the following environment variables to provide the application with the right keys:
DarkSkyKey - this is the API key for Dark Sky
DarkSkyLatLng - this is the lat/lng for the location, format x,y
DarkSkyIconsPrefix - this is the prefix for the location of the icons. The icons are in SVG format. Use a trailing slash in the URL.
##Spotify and Youtube (Intent: getSong)
Use the following environment variable to provide the application with the right key:
YoutubeApiKey - this is the API key for Youtube, get it from developers.google.com