LCUI Files

CHANGES BETWEEN 0.12.5 and 0.12.6

	- LCUI class renamed to LCUIApp, some widget C++ class changed to 
	  inherited from the LCUIWidget class, cancel previous nested class.
	- Re-planning project source code, and prepare for the future of 
	  cross-platform.
	- Add new widget: TextBox and ScrollBar, the TextBox also only have 
	  the basic functions, pending to continue to improve.
	- Add TextLayer module for handling text-bitmap drawing.
	- The default style of window has been modified.
	- Add timer function, ActvieBox widget animation each frame update 
	  has been changed to use the timer.
	- widget can get focus, you can connect FocusIn and FocusOut event 
	  for response to widget get/lose focus.
	- Keyboard input event mechanism has been modified, when keyboard 
	  input, keyboard event default sent to the Focus Widget.
	- Re-planning widget attributes, the widget update processing function 
	  has been modified.
	- Add new widget attributes: padding, you can adjust the padding 
	  of the widget.
	- Add new widget attributes: dock, you can set Widget's dock type.
	- Add STATIC positioning type for widget, this positioning type of 
	  widget will according to display order Auto-Arrange.
	- Widget size support expressed as percentage, When the container 
	  size has been changed, the widget's size will also change.