Separate breaking and other changes

Author: Benestar

RELEASE-NOTES.md

@@ -2,13 +2,18 @@
 
 ## Version 5.0.0 (alpha)
 
+#### Breaking changes
+
 * Removed `Claims` class (deprecated since 1.0)
 * Removed `getClaims` and `setClaims` from `Entity`, `Item` and `Property` (deprecated since 1.0)
 * Removed `ReferenceList::removeDuplicates`
 * `ReferenceList` no longer derives from `SplObjectStorage`, though still implements `Countable`
-    * `ReferenceList` now implements `IteratorAggregate` and has a `toArray` method
 * Removed `HashableObjectStorage`
 
+#### Other changes
+
+* `ReferenceList` now implements `IteratorAggregate` and has a `toArray` method
+
 ## Version 4.4.0 (2016-01-20)
 
 * Added `ItemIdParser`