MyController: Change fetchSQLData to Runnable class. 
This class can be invoked in another thread, and will no longer block
the GUI from updating. Additionally this allows status updates in this
thread to show immediately in the GUI.
MyView: Add new menus. 
- Help > About
- Help > Legend
MyController: Very basic 'about' screen.
MyController: Add basic help > about panel.
Update 'AboutShivImage' banner.
MyController: Add legend menu.
MyView: Enable 'Help > Legend' menu.
MyController: Update comments.