changelog update

Author: gkjohnson

CHANGELOG.md

@@ -4,8 +4,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## Unreleased
-
+## [0.1.4] - 2020-07-17
 ### Added
 
 - `TilesRenderer.dispose` function to completely dispose of all loaded geometry, materials, and textures in the scene when the renderer is no longer needed.