actually let the main class run the program
fixed loading of mainwindow
Generalized the GUI layer
Added controllers for each 'window' to handle actions for each windows separatley
Merge origin/master

Conflicts:
	src/pathfinder/gui/combatStats.fxml
	src/rpg/gui/GUI.java
	src/rpg/gui/MainController.java
	src/rpg/gui/main.fxml