clean up code. dispose callback.
garbage collection.
fix exmaple.
example.
fix example.
use testnet in readme.'
potentially start using mapargs.
handle errors in start_node thread consistently.
style.
first working packet listener.
packet polling still working.
another working packet poll. i still don't understand the nonsense of c++.
more packet polling.
get rid of build warning.
rename. create c++ string.