docs: Update changelog for v0.17.0
docs: Update changelog for v0.17.0

tkem/mopidy,quartz55/mopidy,diandiankan/mopidy,bencevans/mopidy,jmarsik/mopidy,abarisain/mopidy,jcass77/mopidy,glogiotatidis/mopidy,swak/mopidy,bacontext/mopidy,rawdlite/mopidy,kingosticks/mopidy,liamw9534/mopidy,mokieyue/mopidy,pacificIT/mopidy,tkem/mopidy,kingosticks/mopidy,bencevans/mopidy,jcass77/mopidy,mokieyue/mopidy,swak/mopidy,quartz55/mopidy,bencevans/mopidy,jmarsik/mopidy,priestd09/mopidy,bencevans/mopidy,ZenithDK/mopidy,dbrgn/mopidy,SuperStarPL/mopidy,priestd09/mopidy,dbrgn/mopidy,glogiotatidis/mopidy,hkariti/mopidy,jodal/mopidy,hkariti/mopidy,jmarsik/mopidy,ali/mopidy,vrs01/mopidy,rawdlite/mopidy,ZenithDK/mopidy,SuperStarPL/mopidy,ali/mopidy,pacificIT/mopidy,vrs01/mopidy,jcass77/mopidy,tkem/mopidy,ZenithDK/mopidy,swak/mopidy,diandiankan/mopidy,vrs01/mopidy,hkariti/mopidy,jmarsik/mopidy,vrs01/mopidy,jodal/mopidy,jodal/mopidy,mopidy/mopidy,SuperStarPL/mopidy,adamcik/mopidy,pacificIT/mopidy,mokieyue/mopidy,ali/mopidy,SuperStarPL/mopidy,pacificIT/mopidy,mopidy/mopidy,mokieyue/mopidy,glogiotatidis/mopidy,bacontext/mopidy,adamcik/mopidy,mopidy/mopidy,woutervanwijk/mopidy,bacontext/mopidy,kingosticks/mopidy,priestd09/mopidy,diandiankan/mopidy,rawdlite/mopidy,swak/mopidy,diandiankan/mopidy,abarisain/mopidy,dbrgn/mopidy,quartz55/mopidy,glogiotatidis/mopidy,hkariti/mopidy,rawdlite/mopidy,woutervanwijk/mopidy,bacontext/mopidy,tkem/mopidy,dbrgn/mopidy,liamw9534/mopidy,ZenithDK/mopidy,ali/mopidy,quartz55/mopidy,adamcik/mopidy