docs: Add PR#1555 to changelog
docs: Add PR#1555 to changelog

Note that #1555 could also have been a candidate for a point release.
adamcik/mopidy,mopidy/mopidy,jodal/mopidy,kingosticks/mopidy,adamcik/mopidy,jodal/mopidy,jcass77/mopidy,mopidy/mopidy,kingosticks/mopidy,jcass77/mopidy,kingosticks/mopidy,adamcik/mopidy,mopidy/mopidy,jodal/mopidy,jcass77/mopidy