small fixes

[skurfer]

• Nothing under "Recent Tracks" was really useful as a track object because the Persistent ID didn't match what was in the library.
• When adding to a playlist, the default playlist in the third pane was random. Now it should be the one you use most.

[pjrobertson]

iTunes is always a funny beast... the code looks strange, but I don't think it's your fault ;-)

So the notif send a dict with @"persistentID" but the XML file uses @"Persistent ID" so all you're doing is switching the two?
Two questions:

• why convert to an NSString and not store it using an NSNumber in the dict?
• pidNumber is a little confusing as a variable name, when I saw it I thought of process id. Not a biggy though.

[skurfer]

So the notif send a dict with @"persistentID" but the XML file uses @"Persistent ID" so all you're doing is switching the two?

Don’t be silly! persistentID is the key for Scripting Bridge. The NSNotification uses PersistentID, and the XML uses Persistent ID. Make sense? 😉

There’s a new API for the iTunes library in 10.9 that I’ll be looking into, but no real hurry.

why convert to an NSString and not store it using an NSNumber in the dict?

The XML version stores a hex number as a string. That’s what we need to emulate.

[pjrobertson]

Alright cool. If you're not fussed about the pidNumber name, merge. But I still would like it to be a little clearer ;-)
Then merge :P