Correct required propTypes

Author: jakezatecky

src/js/Tree.js

@@ -7,11 +7,6 @@ class Tree extends React.Component {
 	static propTypes = {
 		checked: React.PropTypes.arrayOf(React.PropTypes.string).isRequired,
 		expanded: React.PropTypes.arrayOf(React.PropTypes.string).isRequired,
-		onCheck: React.PropTypes.func.isRequired,
-		onExpand: React.PropTypes.func.isRequired,
-
-		name: React.PropTypes.string,
-		nameAsArray: React.PropTypes.bool,
 		nodes: React.PropTypes.arrayOf(
 			React.PropTypes.oneOfType([
 				React.PropTypes.shape(nodeShape),
@@ -20,7 +15,12 @@ class Tree extends React.Component {
 					children: React.PropTypes.arrayOf(nodeShape),
 				}),
 			]),
-		),
+		).isRequired,
+		onCheck: React.PropTypes.func.isRequired,
+		onExpand: React.PropTypes.func.isRequired,
+
+		name: React.PropTypes.string,
+		nameAsArray: React.PropTypes.bool,
 		optimisticToggle: React.PropTypes.bool,
 	};