Ordered list does not invert number color.

See http://jsfiddle.net/ka98j2pv/2/
This commit introduces @orderedInvertedCountColor for this purpose.

src/definitions/elements/list.less

@@ -559,7 +559,6 @@ ul.ui.horizontal.bulleted.list li:first-child::before,
   display: none;
 }
 
-
 /*-------------------
        Ordered
 --------------------*/
@@ -595,6 +594,11 @@ ol.ui.list li:before,
   opacity: @orderedCountOpacity;
 }
 
+ol.ui.list li:before,
+.ui.ordered.list .list > .item:before,
+.ui.ordered.list > .item:before {
+  color: @orderedInvertedCountColor;
+}
 
 /* Child Lists */
 ol.ui.list ol,
@@ -884,4 +888,5 @@ ol.ui.horizontal.list li:before,
   font-size: @massive;
 }
 
-.loadUIOverrides();
+.loadUIOverrides();
+

src/themes/default/elements/list.variables

@@ -166,6 +166,8 @@
 @orderedChildCountDistance: 1em;
 @orderedChildCountOffset: -2em;
 
+@orderedInvertedCountColor: @invertedLightTextColor;
+
 /* Horizontal Ordereded */
 @horizontalOrderedCountDistance: 0.5em;