* Moved main.cpp into a src directory

Crated a src directory to contain C++ code
+ Updated the readme
+ Split the main.cpp up into files

Split the project up into manageable files, and renamed MyApp to
Application, and MyFrame to MainWindow
+ Added a notebook control on the side

It's mostly useless at the moment, though!
+ Added a sources page to the notebook
* Moved Sources notebook into a separate dir
* Moved Sources NB into its own namespace
+ Added an icon view for the source vids
* Increased the window default size

+Made some room for doing things in the future like saving window size
and position.