MythMusic: Initialise m_wasPlaying to false in the player

This fixes a problem with the player restarting the first time it is stopped
after the recent changes to how the player is stop/started when video playback
status is changed.

mythplugins/mythmusic/mythmusic/musicplayer.cpp

@@ -73,7 +73,7 @@ MusicPlayer::MusicPlayer(QObject *parent)
     m_isPlaying = false;
     m_playMode = PLAYMODE_TRACKS;
     m_canShowPlayer = true;
-    m_wasPlaying = true;
+    m_wasPlaying = false;
     m_updatedLastplay = false;
     m_allowRestorePos = true;