Merge pull request #1455 from ejensen/scrolls-to-top

[ASEditableTextNode] Synchronize scrollsToTop with scrollEnabled

AsyncDisplayKit/ASEditableTextNode.mm

@@ -44,6 +44,8 @@
 - (void)setScrollEnabled:(BOOL)scrollEnabled
 {
   _shouldBlockPanGesture = !scrollEnabled;
+  self.scrollsToTop = scrollEnabled;
+
   [super setScrollEnabled:YES];
 }