Fixed bug #0000159: Logging did not work with absolute logfile_dir specified. However this will still work only if the specified path is within either PATH_site or lockRootPath.
* The BE login screen now shows the sitename by default
* Fixed a typo in config_default.php
* Changed description for lockRootPath


git-svn-id: https://svn.typo3.org/TYPO3v4/Core/trunk@473 709f56b5-9817-0410-a4d7-c38de5d9e867