TODO

* Unittest with ctest with automated build.
* Read ToS https://developer.spotify.com/technologies/libspotify/terms-of-use-non-us/
	* Put the right stuff in LICENSE
* Output
	* Files: Output files in date/format/{playlist,playlistfolder}/*
		* CVS, JSON, XML
	* Stdout
	* --onefileoutput | --dir-structure
	* --columns=title,album,artist,plalylistsubscribers,..
	* --output-dir
* Distribution
	* Automate distribution that compiles in my appkey (how to make that safe, mangle program?)
	* AUR package, ask during install for path to appkey.c
* Spinner object attached to the exporter objects. One spinner for the caching phase too.
* Place cache in users home directory?