Crop component is missing from RenderTexture class

Author: jcyuan

src/gameobjects/rendertexture/RenderTexture.js

@@ -38,6 +38,7 @@ var UUID = require('../../utils/string/UUID');
  * @extends Phaser.GameObjects.Components.Alpha
  * @extends Phaser.GameObjects.Components.BlendMode
  * @extends Phaser.GameObjects.Components.ComputedSize
+ * @extends Phaser.GameObjects.Components.Crop
  * @extends Phaser.GameObjects.Components.Depth
  * @extends Phaser.GameObjects.Components.Flip
  * @extends Phaser.GameObjects.Components.GetBounds