- Moved netdb's disk file operations to separate threads
- Fast exploratory lookup handling at floodfills
- Drop unsolicited database search replies
- Pick only confirmed routers for tunnels and exploratory replies if tunnel build rate is low
- More reliable long live streams
- Throttle database search requests
- Handle database search replies faster
- Don't accept too old routers and address with malformed keys
- Fixed different crashes on high load and shutdown