- asyncore is now on by default
- inv announcements implemented
- bandwidth limit implemented / fixed
- stats on download / upload speed now work
- make prints into logger
- limit knownNodes to 20k as it was before
- green light fixed
- other minor fixes
- Network status UI works but current speed isn't implemented yet
- Track per connection and global transferred bytes
- Add locking to write queue so that other threads can put stuff
there
- send ping on timeout (instead of closing the connection)
- implement open port checker (untested, never triggered yet)
- error handling on IO
