01: Created .gitignore
02: Standard JSON w/manifest
03: node_modules pushed ($ git config core.autocrlf false)
04: App setup w/index.js
05: Application setup completed
06: HTML structure added
07: Use 'sendfile' (route handler refactored)
08: socket.io module installed
09: New socket.io instance; listen on connect event
10: Load socket.io & connect
11: Extra comments added
12: Server receives user input as 'chat message' event
13: 'chat message' event output to screen
14: 'chat message' sent to all w/io.emit
15: Capture 'chat message'/inc.in pg.