Removed Greensock ThrowPropsPlugin as an dependency.

lib/pixi/list.js

@@ -258,7 +258,9 @@ export default class List extends PIXI.Container {
         }
 
         TweenLite.killTweensOf(this.container.position, {x: true, y: true})
-        ThrowPropsPlugin.track(this.container.position, 'x,y')
+        if (typeof ThrowPropsPlugin != "undefined") {
+            ThrowPropsPlugin.track(this.container.position, 'x,y')
+        }
     }
 
     /**
@@ -312,11 +314,13 @@ export default class List extends PIXI.Container {
                 }
             }
 
-            ThrowPropsPlugin.to(this.container.position, {
-                throwProps,
-                ease: Strong.easeOut,
-                onComplete: () => ThrowPropsPlugin.untrack(this.container.position)
-            }, .8, .4)
+            if (typeof ThrowPropsPlugin != "undefined") {
+                ThrowPropsPlugin.to(this.container.position, {
+                    throwProps,
+                    ease: Strong.easeOut,
+                    onComplete: () => ThrowPropsPlugin.untrack(this.container.position)
+                }, .8, .4)
+            }
         }
     }
 

lib/pixi/timeline.js

@@ -745,7 +745,9 @@ export default class Timeline extends BitmapLabeledGraphics {
         this.killTweens()
         this.deltas = []
         this.validScroll()
-        ThrowPropsPlugin.track(this, 'delta')
+        if (typeof ThrowPropsPlugin != "undefined") {
+            ThrowPropsPlugin.track(this, 'delta')
+        }
     }
 
     onMove(event, interaction) {
@@ -762,8 +764,11 @@ export default class Timeline extends BitmapLabeledGraphics {
     }
 
     onEnd(event, interaction) {
-        let vel = ThrowPropsPlugin.getVelocity(this, 'delta')
-        ThrowPropsPlugin.untrack(this)
+
+        if (typeof ThrowPropsPlugin != "undefined") {
+            let vel = ThrowPropsPlugin.getVelocity(this, 'delta')
+            ThrowPropsPlugin.untrack(this)
+        }
 
         this.killTweens()
         this.redraw()