Add scaffolding for initial menu.
I created the startup menu for the app and put a bit of flow in place to demonstrate Inquirer's prompts.
The only "working" bit at the moment is the "Setup" option, which I hope to flesh out soon.
There are more requires than I need right now but they should come into play soon.
Add generate, setup and quit methods.

I added methods for setting up Git and generating static pages.
I also refactored some of the core functionality so the program now acts as a loop, instead
of a one-off task runner.
WARNING: exec in shelljs is known to be a CPU hog. Be aware when using it.