Update CHANGELOG.md

Author: photonstorm

CHANGELOG.md

@@ -120,6 +120,8 @@ If you used any of them in your code, please update to the new function names be
 * Removed the Deferred Diffuse fragment and vertex shaders from the project, as they're not used.
 * `StaticTilemapLayer.upload` will now set the vertex attributes and buffer the data, and handles internal checks more efficiently.
 * `StaticTilemapLayer` now includes the `ModelViewProjection` mixin, so it doesn't need to modify the pipeline during rendering.
+* `WebGLRenderer.textureFlush` is a new property that keeps track of the total texture flushes per frame.
+* The `TextureTintStripPipeline` now extends `TextureTintPipeline` and just changes the topolgy, vastly reducing the filesize.
 
 ### Bug Fixes