Starting new GUI
Added skip button
Starting on the main window
Adding main GUI features
File open/close capabilities
removed whitespace
Merge branch 'feature/gui2' of https://github.com/hhrosvick/Robo-Teach into feature/gui2

Conflicts:
	src/gui2/MainWindow.java
Fixed merge issues
Finshing up major sections: Menu item, Tree drag and drop.
Merge branch 'feature/gui2' into develop