Changes

* Week2 Lab - communication using IRC* Week4 Lab - working with patches - ,World Mozilla Source Code Reading* Week5 Lab - Debugging Mozilla* Week6 Lab - Thunderbird Bud Fix* Week7 Lab - Modifying the Browser* Week8 Lab - Modifying the Browser Part II - writing an extension* Week10 Lab - Creating a Binary C++ XPCOM Componet* Week11 Lab - Adding chrome/UI to the FirstXpcom component