Fixed playlist index trouble, which should fix several demands on Redmine relative to the current music index
Added file deletion when music is removed from local catalog
delete a system out
Fixed playlist behaviour when the same music is several times in the music on remove action
Merge branch 'ui' of https://github.com/SharUTC/SharUTC.git into ui
Merge branch 'master' into ui
Merge branch 'ui'