update change notes

CHANGES.md

@@ -1,3 +1 @@
-- ADD: ExtendedPdo::disconnect() method to close connections explicitly. This does not work for injected PDO connection objects, which should be managed from their creation point, not as part of ExtendedPdo. Thanks to both Jacob Emerick and Jacques Woodcock for their initial implementations.
-
-- CHG: ExtendedPdo::bindValue() now throws Exception\CannotBindValue when it encounters a non-bindable value. This helps with debugging values that make their way down to the PDO layer, which PDO cannot bind.
+The previous release changed the ExtendedPdoInterface by adding a new `disconnect()` method. That was an unintentional BC break to existing implementations of the interface. This release corrects that break by removing the `disconnect()` method from the interface, while leaving it in the implementation.