Added test file for reported issues
Added node.py command for nodetool status

This will allow us to gather nodetool status programatically,
without altering the original nodetool command. This maybe altered
to run any nodetool command in the future.
Hotfix for socket.SO_REUSEPORT

socket.SO_REUSEPORT not supported on all
operating systems. This is suggested as a replacement,
but may not provide identical functionality. Will need
testing by author of #143