Bumped version to v2.2.2, added CHANGELOG entry

CHANGELOG.md

@@ -6,6 +6,14 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 (modification: no type change headlines) and this project adheres to
 [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [v2.2.2] - 2019-01-15
+
+- Added `bn.js` dependency to fix module resolution bug when require the module after
+  clean install, PR [#64](https://github.com/ethereumjs/rlp/pull/64)
+- Use local version of official tests, fixed testing issue, PR [#66](https://github.com/ethereumjs/rlp/pull/66)
+
+[v2.2.2]: https://github.com/ethereumjs/rlp/compare/2.2.1...v2.2.2
+
 ## [v2.2.1] - 2018-12-20
 
 - Fixed a bug introduced in `v2.2.0` causing the CLI `bin/rlp` command not to

package.json

@@ -1,6 +1,6 @@
 {
   "name": "rlp",
-  "version": "2.2.1",
+  "version": "2.2.2",
   "description": "Recursive Length Prefix Encoding Module",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",