general: Added option to manually specify music player. Closes #934

config/config.conf

@@ -348,6 +348,45 @@ disk_subtitle="mount"
 # Song
 
 
+# Manually specify a music player.
+#
+# Default: 'auto'
+# Values:  'auto', 'player-name'
+# Flag:    --music_player
+#
+# Available values for 'player-name':
+#
+# Google Play
+# Spotify
+# amarok
+# audacious
+# banshee
+# bluemindo
+# clementine
+# cmus
+# deadbeef
+# deepin-music
+# elisa
+# exaile
+# gnome-music
+# guayadeque
+# iTunes$
+# juk
+# lollypop
+# mocp
+# mopidy
+# mpd
+# pogo
+# pragha
+# qmmp
+# quodlibet
+# rhythmbox
+# spotify
+# tomahawk
+# xmms2d
+# yarock
+music_player="auto"
+
 # Print the Artist and Title on separate lines
 #
 # Default: 'off'