[gnome-music] (8 commits) Non-fast-forward update to branch wip/mschraal/file-exists-async

[Marinus Schraal <mschraal src gnome org>]

The branch 'wip/mschraal/file-exists-async' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  d780d93... artistart: Make file exists check async
  6787a83... albumart: Make file_exists check async
  2c4b6d4... Reset I/O priorities
  7ac2cfd... artcache/storeart: Emit signal emission after I/O finish

Commits added to the branch:

  4da99ef... artistart: Make file exists check async
  2fb1415... albumart: Make file exists check async
  3f9c598... songart: Make file exists check async
  951820c... Reset I/O priorities
  99af0ad... lower priorities
  f8f8bc9... grltrackerwrapper: Bump Grilo priority
  7710d1a... artcache/storeart: Emit signal emission after I/O finish
  2d82367... asyncqueue: Add debug logging