* Added more functionality to the BabuDB-based MRC, like 'readDir', 'stat', as...

* Added more functionality to the BabuDB-based MRC, like 'readDir', 'stat', as well as file and directory creation. The new MRC is now capable of creating and mounting volumes, creating and listing directories, and creating files. Many features are still missing, many protocol calls are not yet implemented, and features like access control are still missing.
* updated BabuDB JAR
* removed obsolete metadata mapping from old MRC
* extended documentation of file-system-metadata-to-BabuDB-mapping
* fixed various bugs in the new MRC

git-svn-id: https://xtreemfs.googlecode.com/svn/trunk@38 f8528748-c2c0-11dd-ba5c-d3b7c2b3b534