add excutable, modify package, publish to npm
add /listroom, set room to public if no password, reject if same username
roomname var changed to userinput, joining changed to function name joinroom
add README.md
fix README.md
improve README.md, remove .DS_Store, improve .gitignore
fix README.md
Merge pull request #15 from darkpgx/Nullchat

Nullchat