Update CHANGELOG.md

Fix date

Author: sabberworm

CHANGELOG.md

@@ -80,7 +80,7 @@
 * *No backwards-incompatible changes*
 * *No deprecations*
 
-### 5.2.0 (2013-10-30)
+### 5.2.0 (2014-06-30)
 
 * Support removing a selector from a declaration block using `$oBlock->removeSelector($mSelector)`
 * Introduce a specialized exception (Sabberworm\CSS\Parsing\OuputException) for exceptions during output rendering
@@ -135,4 +135,4 @@ Initial release of a stable public API.
 
 ## 0.9
 
-Last version not to use PSR-0 project organization semantics.
+Last version not to use PSR-0 project organization semantics.