usage-logging in more detail: bugfix

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@3276 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
build auto version (2805) ...

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@3277 1f8fe7d8-47f0-464c-8d0a-336f4953ab05