uTorrent 1.7 Build 1703

- Change: Prioritize seed queue based off seed/peer ratio (use_seed_peer_ratio)
- Change: Sort advanced settings by name
- Fix: Some ancient modal dialog bugs where nonmodal dialogs could get activated
- Fix: Bug where one addtorrent dialog could get activated when another was already active
- Fix: Don't repeatedly retry to start if another uTorrent window is discovered but hung
- Fix: uTorrent continues normal startup if another uTorrent instance is detected and exits; previously it would inform the user uTorrent was already running and exit
- Fix: incorrect DHT announce interval