Log4erl version 0.8.6 is released

[Ahmed Ali]

Hi All,

I've just released the latest version of log4erl 0.8.6. This change
log for this release is below. For more information, please download
this release, read files 'API.txt', 'Appenders_API.txt'. Let me know
your findings.

Thanks to everyone who contributed to fixes/

* Added xml_appender for outputing logs to xml files
* Changed default behaviour to use sync logging (helps to eleminate
crash due to many processes due to high load)
* file_appender renames files when rotating instead of copying
* syslog_appender add missing facilities
* Updated leex to fix a critical bug
* Added error_logger_log4erl_h.erl which is a handler for error_logger
Makes it possible to forward error_logger logs to log4erl.

Best regards,

Ahmed