Restoring izulu

This release fixes izulu. The old APIs were all gone. They had to be replaced and the code accordingly changed as well. The weather and location functionality are now provided by brightsky.dev, api.met.no and location.services.mozilla.com. These APIs might very well be changed in the future, however, from now on APIs that need an API key will be avoided. As will be hosting a server component.

2.0 also removes and changes existing functionality, partly because of the API changes, partly to let the script be easier to maintain. Instead of specifying the location via --city, it now can only be supplied by --latitude LAT:LON. The forecast icon is now triggered by --forefast or -f, instead of --preview or -p, and shows the forecast in 12 hour intervals. Selecting images randomly from flickr and local directories was removed (at least for now), as well as the radar image display - the corresponding config options are gone as well.

Please also check the Changelog.