New scans

• Scans Id3 tags that are embedded in the file.
• The title, album and artist names are extracted from the file system folder and filenames.
• The metadata lookup based on title searches comes from Gracenote.
• In OS 2.0 and later, scans are now much faster.
• Press F5 to refresh after new scans.
• Scans can be tied to events, button presses, etc.