Day1:

• Getting Node up and running
• Installing Node Package Manager (NPM)
• Using NPM to install, uninstall, and update packages

Day2:

• IMAP Proxy Server: move clientListener to a separate module to be required from main program

• All other items are now OPTIONAL

Day3:

• Exercise 1: Build a pseudo-class named “Ticker” that emits a “tick” event every 1 second.
• Exercise 2: Build a script that instantiates one Ticker and bind to the “ticker” event, printing “TICK” every time it gets one.
• Exercise 3: Make an HTTP server that serves files. The file path is provided in the URL like this: http://localhost:4000/path/to/my/file.txt