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* Semi-flaky/rough draft playlist controlled
QT app example added
* Multiple adjustments and tuning to playlist to resolve
next and transition logic.
* Multiple fixes to Pys2Playlist so that it behaves
correctly.
* Finished a working example of using a QTableView with Pys2Playlist. It's amazing how much more scaffolding and
supporting logic goes into wiring this up.
* current_song property/variable is dead & gone, the correct property is now `current` which handles memory/handle cleanup
and keeps things kosher.