[gnome-music] (14 commits) ...data/ui: Stop using underscore for margin properties

[Jean Felder <jfelder src gnome org>]

Summary of changes:

  68e0778... playlistswidget: Remove margin-left and margin-right usage (*)
  f03fad7... searchview: Remove margin-left and margin-right usage (*)
  0683fcd... appmenu: Remove margin-left and margin-right usage (*)
  8969640... artistalbumwidget: Remove margin_left and margin_right usag (*)
  f7d2a5e... songwidget: Remove margin_right usage (*)
  dc7557b... lastfmdialog: Remove margin property usage (*)
  622bf15... playlistdialogrow: Remove margin property usage (*)
  6f4ea52... artisttile: Remove margin property usage (*)
  395e62e... searchview: Remove margin property usage (*)
  8285cad... playlistdialog: Remove margin property usage (*)
  41bd221... appmenu: Remove margin property usage (*)
  d066458... playlisttile: Remove margin property usage (*)
  9d19ed2... albumsview: Remove margin property usage (*)
  5b34f23... data/ui: Stop using underscore for margin properties (*)

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