Made SimpleMode the default window loaded. Hooked it up to the preloader...

.... Made the number of buttons adjust dynamically to the number of files loaded. Hooked up ActionListeners to each button that will eventually open up a gradebook for course selected (trying to understand what we're using for that).

This is exactly why we cannot use netbeans anymore. It has no ability to create dynamic content, which is absolutely essential to a program like this. Nobody open netbeans. Not even once.

Note: You must download the latest structure.xml file from Trello and place it in the gradebooks folder to test. XML files are not allowed on the repo anymore.