reverted: Merge pull request #67 from timglabisch/session_locking ->  lockfree session

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@3271 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
build auto version (2802) ...

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@3272 1f8fe7d8-47f0-464c-8d0a-336f4953ab05