Got rid of compiler warnings!
Added an 'Add Media' option to file menu. User can now add songs from various directories to playlist.
Moved file dialogue code into its own function.
Used 'Open' icon for 'Add Media' button, too. Also added key even for the 'a' button for quick adding of media.
Got rid of statusbar.cpp which wasn't even being used.
Fixed issue with keyboard shortcuts not working after playlist item had been clicked.
Fixed even more issues with keyboard shortcuts not working due to the playlist view.
Playlist View now updates with audio metadata as tracks are played.
Got rid of commented out code for playlist view.