Foundation: cleaned up a bit; changed the log-output behavior for searching...

Foundation: cleaned up a bit; changed the log-output behavior for searching for the freaky RPC-client ConcurrentModification-bug; removed an unnecessary exception thrown by an output-util

git-svn-id: https://xtreemfs.googlecode.com/svn/trunk@1806 f8528748-c2c0-11dd-ba5c-d3b7c2b3b534