Record changes in repo

I'm going to try to record changes in the changelog file itself, in
addition to GitHub releases.

CHANGELOG.md

@@ -0,0 +1,27 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [0.6.1] 2018-12-04
+### Added
+- Tranform files can be written in Typescript. If the file extension of the 
+transform file is `.ts` or `.tsx`, `@babel/preset-typescript` is used to 
+convert them. This requires the `--babel` option to be set (which it is by 
+default). ( #287 , @brieb )
+
+### Changed
+- The preset and plugins for converting the transform file itself via babeljs 
+have been updated to work with babel v7. This included removing 
+`babel-preset-es2015` and `babel-preset-stage-1` in favor of 
+`@babel/preset-env`. Only `@babel/proposal-class-properties` and 
+`@babel/proposal-object-rest-spread` are enabled as experimental features. If 
+you want to use other's in your transform file, please create a PR.
+
+### Fixed
+- Typescript parses use `@babel/parser` instead of Babylon ( #291, @elliottsj )
+
+### Bumped
+- `micromatch` => v3.1.10, which doesn't (indirectly) depend on `randomatic` < 
+v3 anymore (see #292).