Bug 144527 [Wizards] WizardDialog should have the maxmize button
RC6 Many of our wizards show up quite scrunched initially in High Contrast mode. When they are expanded the size is quite good. We should set the maximize flag so that we get a maximize button on the dialog shell.
bundles/org.eclipse.jface/src/org/eclipse/jface/wizard/WizardDialog.java
* Creates the Cancel button for this wizard dialog.
     * Creates a standard (<code>SWT.PUSH</code>) button and registers for its
     * selection events. Note that the number of columns in the button bar composite
     * is incremented. The Cancel button is created specially to give it a 
     * removeable listener.
     *
     * @param parent the parent button bar
     * @return the new Cancel button
     */
    private Button createCancelButton(Composite parent) {
        
        ((GridLayout) parent.getLayout()).numColumns++;
        Button button = new Button(parent, SWT.PUSH);
        button.setText(IDialogConstants.CANCEL_LABEL);
        setButtonLayoutData(button);
        button.setFont(parent.getFont());
        button.setData(new Integer(IDialogConstants.CANCEL_ID));
        button.addSelectionListener(cancelListener);
        return button;
    }
    /**
     * Return the cancel button if the id is a the cancel id.
     * @param id the button id
     * @return the button corresponding to the button id
     */
    protected Button getButton(int id) {
        if (id == IDialogConstants.CANCEL_ID) {
			return cancelButton;
		}
        return super.getButton(id);