Update outdated docstrings in MpdSession
Update outdated docstrings in MpdSession

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