• Optimize scanning so playouts are only rebuilt when necessary (duration changes, or collection membership changes)
• Automatically add new posters during scanning
• Support more poster file types (jpg, jpeg, png, gif, tbn)
• Add "Refresh All Metadata" button to media sources page; this should only be needed if NFO metadata or posters are modified
• Add progress indicator for media sources that are being actively scanned
• Prevent deleting media source during scan
• Prevent creating playout with empty schedule