Azureus 3.0.4.2 Beta

FEATURE: UI | Added "Check Files Exist" menu option [amc1]
FEATURE: Plug | Perform low resource usage tracking of online torrents for swarm cross-population purposes [Parg]

CHANGE: Core | Added option to disable download speed focus [The 8472]
CHANGE: Core | Reduced memory usage for many-torrent instances [The 8472]
CHANGE: UI | Multiple selected torrent export now works [amc1]

BUGFIX: Core | Fixed IP filters not working when ALLOW instead of DENY was used [Parg]
BUGFIX: Core | Improve rebuffering behaviour when real-time pieces are too slow for any peers to get in time [Parg]
BUGFIX: Core | Ensure minimum buffer requirements are factored into ETA calculation [Parg]
BUGFIX: UI | Eliminated various memory leaks [The 8472]