Empty Timelines no long return null.

Author: photonstorm

v3/src/tween/builder/GetTweens.js

@@ -4,7 +4,11 @@ var GetTweens = function (config)
 {
     var tweens = GetValue(config, 'tweens', null);
 
-    if (typeof tweens === 'function')
+    if (tweens === null)
+    {
+        return [];
+    }
+    else if (typeof tweens === 'function')
     {
         tweens = tweens.call();
     }

v3/src/tween/builder/TimelineBuilder.js

@@ -12,15 +12,19 @@ var TweenBuilder = require('./TweenBuilder');
 
 var TimelineBuilder = function (manager, config)
 {
-    var defaults = Clone(Defaults);
+    var timeline = new Timeline(manager);
 
     var tweens = GetTweens(config);
 
     if (tweens.length === 0)
     {
-        return null;
+        timeline.paused = true;
+
+        return timeline;
     }
 
+    var defaults = Clone(Defaults);
+
     defaults.targets = GetTargets(config);
 
     //  totalDuration: If specified each tween in the Timeline is given an equal portion of the totalDuration
@@ -46,8 +50,6 @@ var TimelineBuilder = function (manager, config)
     defaults.flipX = GetBoolean(config, 'flipX', defaults.flipX);
     defaults.flipY = GetBoolean(config, 'flipY', defaults.flipY);
 
-    var timeline = new Timeline(manager);
-
     //  Create the Tweens
     for (var i = 0; i < tweens.length; i++)
     {