new_client: regenerated interfaces, eliminating some using namespaces, using...

new_client: regenerated interfaces, eliminating some using namespaces, using IDL constants, volume UUIDs

git-svn-id: https://xtreemfs.googlecode.com/svn/trunk@220 f8528748-c2c0-11dd-ba5c-d3b7c2b3b534