Jump to next / previous chapter (credit: lks-nbg)
Added unplayed indicator and option to hide played audiobooks (credit: lks-nbg)
Added sort by year option (credit: lks-nbg)
Custom jump intervals (credit: lks-nbg)
Sleep timer: Add 60, 90, 120 minute options (credit: lks-nbg)
Fix notification not updating properly while paused
Fix issues with Billing Library