Adding ref for TabList

Author: mzabriskie

lib/tabs.js

@@ -85,6 +85,10 @@ module.exports = React.createClass({
 		return React.Children.count(this.props.children.slice(1));
 	},
 
+	getTabList: function () {
+		return this.refs.tablist;
+	},
+
 	getTab: function (index) {
 		return this.refs['tabs-' + index];
 	},
@@ -150,6 +154,7 @@ module.exports = React.createClass({
 			// Clone TabList and Tab components to have refs
 			if (count++ === 0) {
 				result = React.addons.cloneWithProps(child, {
+					ref: 'tablist',
 					children: React.Children.map(child.props.children, function (tab) {
 						var ref = 'tabs-' + index,
 							id = state.tabIds[index],