Merge pull request #143 from Lewiscowles1986/patch-1

restore exception handler when cleaning up object

Author: defuse

src/ExceptionHandler.php

@@ -42,5 +42,6 @@ public function __destruct() {
         if ($this->rethrow) {
             throw $this->rethrow;
         }
+        \restore_exception_handler();
     }
 }