Adding docs.

src/gameobjects/RenderTexture.js

@@ -1,20 +1,58 @@
+/**
+* @author       Richard Davey <rich@photonstorm.com>
+* @copyright    2013 Photon Storm Ltd.
+* @license      {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
+* @module       Phaser.RenderTexture
+*/
+
+/**
+* Description of constructor.
+* @class Phaser.RenderTexture
+* @classdesc Description of class.
+* @constructor
+* @param {Phaser.Game} game - Current game instance.
+* @param {string} key - Description.
+* @param {number} width - Description.
+* @param {number} height - Description.
+*/
 Phaser.RenderTexture = function (game, key, width, height) {
 
+	/**
+	* @property {Phaser.Game} game - A reference to the currently running game. 
+	*/
 	this.game = game;
 
+	/**
+    * @property {Description} name - Description. 
+	*/
     this.name = key;
 
 	PIXI.EventTarget.call( this );
 
+	/**
+	* @property {number} width - Description. 
+    */
 	this.width = width || 100;
+	
+	/**
+	* @property {number} height - Description. 
+    */
 	this.height = height || 100;
 
-	//	I know this has a typo in it, but it's because the PIXI.RenderTexture does and we need to pair-up with it
-	//	once they update pixi to fix the typo, we'll fix it here too :)
+	/**	I know this has a typo in it, but it's because the PIXI.RenderTexture does and we need to pair-up with it
+	* once they update pixi to fix the typo, we'll fix it here too :)
+    * @property {Description} indetityMatrix - Description. 
+ 	*/
 	this.indetityMatrix = PIXI.mat3.create();
 
+	/**
+	* @property {Description} frame - Description. 
+    */
 	this.frame = new PIXI.Rectangle(0, 0, this.width, this.height);	
 
+	/**
+	* @property {Description} type - Description. 
+    */
 	this.type = Phaser.RENDERTEXTURE;
 
 	if (PIXI.gl)