Change the name of Component.render to Component.build in Effen

sky/examples/stocks-fn/stockrow.dart

Index: sky/examples/stocks-fn/stockrow.dart
diff --git a/sky/examples/stocks-fn/stockrow.dart b/sky/examples/stocks-fn/stockrow.dart
index 89354cb558c9b1cfd61c549a7212e168c94829d1..5ee0313c54c2185ad24d282ad0aff7393d83b293 100644
--- a/sky/examples/stocks-fn/stockrow.dart
+++ b/sky/examples/stocks-fn/stockrow.dart
@@ -34,7 +34,7 @@ class StockRow extends MaterialComponent {
     this.stock = stock;
   }
 
-  Node render() {
+  Node build() {
     String lastSale = "\$${stock.lastSale.toStringAsFixed(2)}";
 
     String changeInPrice = "${stock.percentChange.toStringAsFixed(2)}%";
@@ -62,7 +62,7 @@ class StockRow extends MaterialComponent {
       )
     ];
 
-    children.add(super.render());
+    children.add(super.build());
 
     return new Container(
       style: _style,