(svn r23525) -Codechange: make Window::flags4 WindowFlags instead of uint16, with only values known in WindowFlags (and move out 2 timers to their own variable)

-Codechange: rename Window::flags4 to Window::flags
-Codechange: move some non-inline functions from .hpp to .cpp

src/bootstrap_gui.cpp

@@ -50,7 +50,7 @@ public:
 	BootstrapBackground() : Window()
 	{
 		this->InitNested(&_background_desc, 0);
-		CLRBITS(this->flags4, WF_WHITE_BORDER_MASK);
+		CLRBITS(this->flags, WF_WHITE_BORDER);
 		ResizeWindow(this, _screen.width, _screen.height);
 	}