DIR: update of the client to support the automatic failover provided by the...

DIR: update of the client to support the automatic failover provided by the latest version of the BabuDB replication; 

git-svn-id: https://xtreemfs.googlecode.com/svn/trunk@1725 f8528748-c2c0-11dd-ba5c-d3b7c2b3b534