Bug 295981 [Forms] FormImages & FormFonts are not disposed correctly
bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/widgets/Section.java
while (c != null) {
			c.setRedraw(false);
			c = c.getParent();
			if (c instanceof SharedScrolledComposite || c instanceof Shell) {
				break;
			}
		}
		c = this;
		while (c != null) {
			c.layout(true);
			c = c.getParent();
			if (c instanceof SharedScrolledComposite) {
				((SharedScrolledComposite) c).reflow(true);
				break;
			}
		}
		c = this;
		while (c != null) {
			c.setRedraw(true);
			c = c.getParent();
			if (c instanceof SharedScrolledComposite || c instanceof Shell) {
				break;
			}
		}
	}
	/**
	 * Sets the description text. Has no effect if DESCRIPTION style was not
	 * used to create the control.
	 * 
	 * @param description