Move some more message strings to the properties file.

melodactyl/locale/en-US/messages.properties

@@ -0,0 +1,10 @@
+player.preTrackChange-1 = Before track changed: %S
+player.postTrackChange-1 = Track changed: %S
+player.preViewChange-1 = Before view changed: %S
+player.postViewChange-1 = View changed: %S
+player.trackStart-1 = Track started: %S
+player.trackPause-1 = Track paused: %S
+player.trackEnd-1 = Track ended: %S
+player.trackStop-1 = Track stopped: %S
+
+# vim:se ft=jproperties tw=0: