Moving files about

[Ivan Habunek]

 I think it may be a good idea to move files with abstract classes and 
interfaces to their respective directories.
i.e. move:
- LoggerAppender.php to appenders
- LoggerConfigurator.php to configurators
- LoggerFilter.php to filters
- LoggerLayout.php to layouts
This would make the root directory less cluttered.
What do you say?

Regards,
Ivan