Merge pull request php-debugbar#227 from clickalicious/master

Fix for wrong namespace lookup. No clean use possible otherwise.

Author: barryvdh

src/DebugBar/DataCollector/MessagesCollector.php

@@ -11,6 +11,7 @@
 namespace DebugBar\DataCollector;
 
 use Psr\Log\AbstractLogger;
+use DebugBar\DataFormatter\DataFormatterInterface;
 
 /**
  * Provides a way to log messages