Add editor note for label role

Author: jnurthen

index.html

@@ -4137,6 +4137,7 @@ <h2>Definition of Roles</h2>
 					<li>All elements with role <code>label</code> are associated with one or more other elements.</li>
 					<li>When an element with role <code>label</code> is activated by touch or a pointer and its associated element is focusable, focus moves to the associated element. If more than one focusable element is associated with the same label, focus moves to the first element.</li>
 				</ul>
+				<p class="ednote">Implementation of the <code>label</code> role as described here is currently unlikely. At this time it is anticipated that the <code>label</code> role will not be available in the ARIA 1.3 release</p>
 			</div>
 			<table class="role-features">
 				<caption>Characteristics:</caption>