- Add idle detector, reduce tunnel count when idle (prep for torrent updates)
   - Cancel CoordinatorAcceptor cleaner when halted
   - Make PeerCoordinatorSet an Iterable
   - Reduce max protocol errors to 1
   - Disable unused PeerMonitorTask

    * Code Janitor time! Many fixes and documenting fixes that should be
      done in the future. for the most part, this is a general code cleanup.
    * On smaller/embedded systems, the "final" keyword cleanups will have
      more of an impact than on larger systems.
    * Document missing hashCode() methods.
    * Unhide more variables to make code easier to read.