Update children before checking '_inViewRect' in ScrollView render cmd's

Author: 1scaR1

Diff for: extensions/ccui/uiwidgets/scroll-widget/UIScrollViewCanvasRenderCmd.js

@@ -32,7 +32,9 @@
             scaleY = cc.view.getScaleY();
         var context = ctx || cc._renderContext;
         context.computeRealOffsetY();
-        
+
+        this._node.updateChildren();
+
         for (i = 0, len = locCmds.length; i < len; i++) {
             var checkNode = locCmds[i]._node;
             if(checkNode instanceof ccui.ScrollView)

Diff for: extensions/ccui/uiwidgets/scroll-widget/UIScrollViewWebGLRenderCmd.js

@@ -36,6 +36,9 @@
         if (!locCmds) {
             return;
         }
+
+        this._node.updateChildren();
+
         for (i = 0, len = locCmds.length; i < len; i++) {
             checkNode = locCmds[i]._node;
             if(checkNode instanceof ccui.ScrollView)