* library/tdump.tcl (class TdumpWin): Inherit from GDBWin

	* library/tdump.tcl (class TdumpWin): Inherit from GDBWin
	and ManagedWin.
	(constructor): Remove old itcl2 handling code and name the
	window.
	(build_win): Use iwidgets::scrolledtext instead of
	tixScrolledText.
	(twin): Remove unused variable. Use itk_component(stext)
	instead.
	(maxwidth): Remove unused variable.
	(destructor): Remove unused method.
	(config): Ditto.