Merge pull request #84 from lukasreichart/master

If the measure function is defined: only return from execution of lay…

src/java/src/com/facebook/csslayout/LayoutEngine.java

@@ -481,7 +481,9 @@ public class LayoutEngine {
             getPaddingAndBorderAxis(node, CSSFlexDirection.COLUMN);
         }
       }
-      return;
+      if (node.getChildCount() == 0) {
+        return;
+      }
     }
   
     int i;