Client-ng code, state of svn r4793. Tested on x86_64 with iozone, with and...

Client-ng code, state of svn r4793. Tested on x86_64 with iozone, with and without debugging. Valgrind showed no leaks and memchk errors 
at runtime.


git-svn-id: https://xtreemfs.googlecode.com/svn/trunk@3 f8528748-c2c0-11dd-ba5c-d3b7c2b3b534