(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/misc_gui.cpp

@@ -643,7 +643,7 @@ struct TooltipsWindow : public Window
 
 		this->InitNested(&_tool_tips_desc);
 
-		CLRBITS(this->flags4, WF_WHITE_BORDER_MASK); // remove white-border from tooltip
+		CLRBITS(this->flags, WF_WHITE_BORDER);
 	}
 
 	virtual Point OnInitialPosition(const WindowDesc *desc, int16 sm_width, int16 sm_height, int window_number)