mpris: Disable extension if no $DISPLAY set
mpris: Disable extension if no $DISPLAY set

We cannot connect to the D-Bus session bus if there is no X11 $DISPLAY
available.

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