[tracker-miners] (11 commits) ...Merge branch 'wip/jfelder/performer-track-artist-distinction' into 'master'

[Sam Thursfield <sthursfield src gnome org>]

Summary of changes:

  f5d00fb... tests: Add the artist urn information for the flac extracti (*)
  c82f458... tests: Add a performer tag to the flac audio file (*)
  1ba3e96... tests: Add a performer tag to the vorbis audio file (*)
  0f91e7d... tracker-extract-gstreamer: Distinguish artist and performer (*)
  41d87bd... tests: Add the artist urn information for the mp3 extractio (*)
  308df62... tracker-extract-mp3: Change performer fields to artist (*)
  ed41825... tests: Add a performer tag to the mp3 audio files (*)
  a64b95b... tests: Add a newline at the end of the mp3-id3v2.3 expected (*)
  ee171a0... tracker-extract-mp3: Add support for the performer tag (*)
  ba995ae... tests: Add some missing metadata to the mp3-id3v2.3 test (*)
  23c4e49... Merge branch 'wip/jfelder/performer-track-artist-distinctio

(*) This commit already existed in another branch; no separate mail sent