Update ChangeLog

ChangeLog

@@ -41,6 +41,7 @@ LibreSSL Portable Release Notes:
 	  - Simplified and cleaned up the OBJ_ API.
 	  - Cleaned up the EVP_Cipher{Init,Update,Final}() implementations.
 	  - Removed unused function pointers from X.509 stores and contexts.
+	  - A lot of cleanup and reaorganization in EVP.
 	* Documentation improvements
 	  - ENGINE documentation was updated to reflect reality.
 	  - Made EVP API documentation more accurate and less incoherent.