remove maniascript debug on button, add submenu features: nested submenus, damn it took long to figure out how to doit...
fixes
made the right click menu very usable
trying a new visual style
visuals...
visuals
testing...
change welcome message
Merge branch 'dev' into dev_newManiaScriptSystem

Conflicts:
	Gui/Elements/Button.php
	Gui/Windows/Window.php