Begin gui cleanup.
Move files around to conform with python packaging conventions.
Start reworking the file menu.
Fix up creation of the Note object from the json file. I still don't
understand how python figures out packages/modules.
Moved File menu out of View and into a separate class. This is a first
step towards refactoring the View class to make it smaller. Right now
I'm just moving functionality around.
Incomplete move of Help menu. See nvxp.taskpaper for tasks to complete.
Completed move of Tools menu.
Refactor out all the menus into a separate set of classes. A little bit
ugly but this is just a step along the way.