Added a BufferHandler to allow batch processing of the records

src/Monolog/Handler/HandlerInterface.php

@@ -35,6 +35,14 @@ interface HandlerInterface
      */
     function handle(array $record);
 
+    /**
+     * Handles a set of records.
+     *
+     * @param array $records The records to handle (an array of record arrays)
+     * @return Boolean Whether the handler stops the propagation in the stack or not.
+     */
+    function handleBatch(array $records);
+
     /**
      * Adds a processor in the stack.
      *