Update README.md
fix test harness parent
Merge pull request #42 from RichardWarburton/master

fix test harness parent
fix errors in populate script
Merge pull request #43 from RichardWarburton/master

fix errors in populate script
Force old connections to close preventing file leaks
remove unused import
Merge pull request #44 from johnoliver/master

Close old sockets preventing file handle leaks