added streaming title to album and track.

added soundalike type to wkt (well-known-tunes) element. Possible values are:

• 1=Artist
• 2=Title
• 4=Film

As explicit_lyrics was not yet implemented in any conversions, we moved this flag as a booelan attribute to the lyrics element.

We have added a new boolean element has_loops on track level. We use this element if sample packs are available for a track.

on label element – added Start date – e.g. for subpublished repertoire

on track element – added explicit_lyrics boolean 0/1 value