Updated CHANGELOG

Author: jdantonio

CHANGELOG.md

@@ -2,14 +2,15 @@
 
 * Fixed a Rubiniux bug in synchronization object
 * Fixed all unterpreter warnings (except circular references)
-* Fixed requires when requiring Atom alone
+* Fixed requires when requiring `Atom` alone
 * Significantly improved `ThreadLocalVar` on non-JRuby platforms
 * Fixed error handling in Edge `Concurrent.zip`
 * `AtomicFixnum` methods `#increment` and `#decrement` now support optional delta
-* New AtomicFixnum#update` method
+* New `AtomicFixnum#update` method
 * Minor optimizations in `ReadWriteLock`
 * New `ReentrantReadWriteLock` class
 * `ThreadLocalVar#bind` method is now public
+* Refactored many tests
 
 ## Current Release v0.9.0 (10 July 2015)