Anniversary playlist

[programaker]

Given a day (month-day), search among your followed artists for albums that where released on that day, get a track sample from it and add to a new playlist "Album anniversaries dd/MM" or something like that.

Avoid album's 1st and last tracks (intros and outros) when getting a sample.

[programaker]

program, api, service are all done.
However, we've reached Spotify's api limits while creating the playlist.

Need to think about how to solve this:

• less parallelism?
• get the wait time from the error, wait and retry?
• something more elaborated?

[programaker]

As the feature is not exposed yet, the code is already merged on master