[gnome-music] (82 commits) Non-fast-forward update to branch wip/empty-state

[Vadim Rutkovsky <vrutkovsky src gnome org>]

The branch 'wip/empty-state' 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:

  75f5211... UI: better Empty state
  ed8c296... UI: add initial state
  a7c9051... Update AUTHORS and About dialog

Commits added to the branch:

  e7f795c... Updated Basque language (*)
  df0e50e... Updated Spanish translation (*)
  1ef6d5f... Update Aragonese translation (*)
  c8a0a38... Updated Greek translation (*)
  b989031... Updated Hebrew translation (*)
  bcc83c4... Fix German desktop file keyword translation (*)
  8b7aea9... Updated Russian translation (*)
  d6bee1e... Updated Hungarian translation (*)
  644fd10... Updated Slovak translation (*)
  820e71e... Updated Czech translation (*)
  45afcea... Updated Norwegian bokmål translation from Åka Sikrom. (*)
  ffc7e30... Updated Norwegian bokmål translation from Åka Sikrom. (*)
  1cdaa3a... update all static playlists whenever media added to library (*)
  1c66c49... Implement favourites playlist along with starring tracks (*)
  7e006ef... view: remove extra print from _on_star_toggled (*)
  cfb58d0... widgets: implement song fav on albums view (*)
  567acb7... widgets: don't start playback if we clicked on star in albu (*)
  ddf0175... mpris: verify that current track is still valid when fetchi (*)
  ee24991... settings: remove unused most-played-playlist-id (*)
  91e6678... Updated Spanish translation (*)
  ba4d4d7... Updated Ukrainian translation (*)
  55fb390... Updated Russian translation (*)
  5723795... Updated Hungarian translation (*)
  6f1cb8d... player: Take care of media item discovery (*)
  04c7710... view: Don't discover items, and use DiscoveryStatus from mo (*)
  bf1510b... widgets: Don't discover items, and use DiscoveryStatus from (*)
  aa5ecaa... albumArtCache: blacklist failed items on all exceptions (*)
  d99751d... Don't select All Artists by default (*)
  5850008... playlists: limit number of returned tracks to 50 (*)
  157fd5f... playlists: don't use sync tracker calls to fetch playlists  (*)
  70c1036... playlists: add songs to static playlists with one query (*)
  c6477c7... playlists: use popover for menu (*)
  8bba6fc... albumArt: make a new icon if item was blacklisted (*)
  26ea28a... window: remove unused Tracker import (*)
  31e0e20... Show loading notification on long operations (e.g. All Arti (*)
  39970ff... search: show favorited songs (*)
  1961882... artists: restore artists list background (*)
  b4a687c... playlists: fix sidebar background and add 1px border (*)
  b69c42e... Updated Norwegian bokmål translation from Åka Sikrom. (*)
  e2e7c56... Release 3.15.90 (*)
  a9721d9... Post-release version bump (*)
  be4761e... playlist: always create a new smart playlist if it was not  (*)
  84052a3... Updated Hebrew translation (*)
  2825a56... window: make loading notification appear after 1s (*)
  a7e90ca... notification: align by center, add proper margins (*)
  54201b2... Updated Spanish translation (*)
  c0dbf35... Updated Slovak translation (*)
  e28cbd6... Updated Hungarian translation (*)
  c4e74f6... Updated Russian translation (*)
  b0def48... player: fix remote files playback (*)
  9344f31... Updated Greek translation (*)
  223e952... Updated Greek translation (*)
  51612d6... Updated Chinese (Taiwan) translation (*)
  8b5634d... Updated Chinese (Taiwan) translation (*)
  bb5b50d... Updated Swedish translation (*)
  0e022cf... Updated French translation (*)
  bfaa8ea... Updated Italian translation (*)
  f304e7b... Updated Hebrew translation (*)
  574b9a6... Updated Brazilian Portuguese translation (*)
  80ea7b9... widgets: refactor _add_star_renderer (*)
  a239086... Updated Ukrainian translation (*)
  e380ac0... Updated Kazakh translation (*)
  eba2d4e... bugfix for 'undo playlist deletion': now playlist ACTUALLY  (*)
  fb6ea36... reordered notification functions (*)
  61fb2f7... on undo playlist deletion, put playlist back at original sp (*)
  910eaad... disable deletion of smart playlists (*)
  b60bf01... Updated Galician translations (*)
  582867b... Updated Galician translations (*)
  7b7fc3c... player: Add support for installing missing gstreamer plugin (*)
  a3417e8... player: Avoid a hard dep on gstreamer 1.5 (*)
  815ffc1... .travis.yml: add travis notifications to gitter.im room (*)
  827b83b... Revert accidentally comitted patches for installing missing (*)
  d6f0086... Updated Lithuanian translation (*)
  b4b384c... view: pyflakes fixed (*)
  936adee... pep8 fixes (*)
  ec542aa... .travis.yml: ignore E402 (*)
  ae7268e... .travis.yml: don't start the build procedure (*)
  2823282... UI: better Empty state
  23b9ce7... UI: add initial state
  eb5a8ff... Update AUTHORS and About dialog
  e7cf306... view: remove duplicated Gio import
  853f786... Use fake stack to show view switcher and disable it

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