0.52
	> public release name DockCtrl DEV803b.1
	--------------------------------------------------------------------------------------------
3/21/2008
	+ added full serialization support.
	+ added default/custom layout support.
	* DockableCtrl class reworked (now it is more abstract); 
	* TabWindow class reworked (no longer uses PaneSplitter() class to control child widgets).
	* DockCtrl class renamed to DockBase class and added a more generic DockCtrl class.
	* DockBase class derives from TopWindow. 
	+ added	InitDockCtrl() method for widget initialization.
	+ added InitCustomLayouts() method for planned "predefined" layout support.
	+ added Tabify() method (with 1 overload) to simplify widget tabbing.
	+ added DockFloat() method to DockableCtrl class.
	+ added ShowDragBarButtons() method to DockWindow class.
	+ added ForbidDragAndDrop()/PermitDragAndDrop() methods to DockableCtrl base widget class.
	  dnd behaviour of each DockableCtrl derived widget can be controlled using this method pair. 
	+ added layout group to the settings window.
	+ added HotKey support for Settings window (default is CTRL + HOME).
	+ added methods to control forbid/permit on window sides.
	- numerous bugfixes, and improvements.

3/22/2008
	+ double clicking on a dragbar of a authidden dockwindow will cause it go into docked state.
	+ added "stdsize" variable to the PaneFrame class.
	+ added ShowXXXXPane() (X:left/top/right/bottom) public methods to the Dockbase class. 

0.52
	> public release name DockCtrl DEV803b.2
	--------------------------------------------------------------------------------------------

3/27/2008
	+ added widget grouping (both predefined/default and user) support. 
	+ added WidgetGroup() method and defined "%" operator for widget grouping.
	+ added group manager to the settings window.
	* tab window creation/managment mechanism changed.