[docs] - Update CHANGELOG

Author: beefancohen

CHANGELOG.md

@@ -1,3 +1,10 @@
+1.4.0 / 2016-06-10
+==================
+- [dependency] Integrate `jsx-ast-utils` (extracted JSX core module)
+		1. [jsx-ast-utils](https://github.com/evcohen/jsx-ast-utils)
+- [fix] Better error reporting for aria-unsupported-elements indicating which prop to remove.
+
+
 1.3.0 / 2016-06-05
 ==================
 - [new] Spelling suggestions for incorrect `aria-*` props