*fixed graph-on-parent enable/disable does not activate undo/redo on the...

*fixed graph-on-parent enable/disable does not activate undo/redo on the parent window (or the gop-ed patch unless it is open)
*improved verifyquit mechanism to accomodate abstractions
*fixed bug where hide text value was not properly interpreted by the canvas apply redo/undo
*fixed stray stderr tcl/tk errors