Solana Quest: Testing the Anchor code...notes and got ya's

In this video we finish the messenger app by looking at the automated tests. In addition, there was a "got ya" in building the program that is discussed. For the most part the testing code is up to date. However, there was one big error. In addition, there are other points of note in getting it to work. Finally, we discuss using an anchor skeleton build (the original init) in a separate directory to help use debug.