local: Temporary workaround for issue #527
local: Temporary workaround for issue #527

Adds a fallback to `Track(uri=uri` when track lookup fails for playlists. This
means we can at least load metadata less tracks giving users functioning
playlists, instead of only supporting `local:track:...` style URIs.

Issue is not fixed, but this is sufficient to reduce priority until we get to
the larger planed refactor for this and other core API issues.

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