version bump

Author: 62316e

package.json

@@ -1,6 +1,6 @@
 {
   "name": "black-engine",
-  "version": "0.5.8",
+  "version": "0.5.9",
   "description": "",
   "main": "dist/black-es6-module.js",
   "directories": {},

src/assets/AssetManager.js

@@ -704,6 +704,8 @@ class AssetManager extends MessageDispatcher {
 
 /**
  * Default instance. Sprite and other classes uses this instance to find textures by name.
+ * 
+ * @private
  * @static
  * @type {AssetManager}
  */