Update CHANGELOG.md

Author: photonstorm

CHANGELOG.md

@@ -25,6 +25,7 @@
 
 * `GameConfig.antialiasGL` is a new boolean that allows you to set the `antialias` property of the WebGL context during creation, without impacting any subsequent textures or the canvas CSS.
 * `InteractiveObject.alwaysEnabled` is a new boolean that allows an interactive Game Object to always receive input events, even if it's invisible or won't render.
+* `Bob.setTint` is  a new method that allows you to set the tint of a Bob object within a Blitter. This is then used by the Blitter WebGL Renderer (thanks @rexrainbow)
 
 ### Updates