Vivaldi 1.0 implemented in client side. It now keeps and manages its position...

Vivaldi 1.0 implemented in client side. It now keeps and manages its position in the coordinate space and tries to recalculate it periodically.

-Timeouts are not controlled yet.
-Code for evaluating the results is included (though it will be removed)



git-svn-id: https://xtreemfs.googlecode.com/svn/trunk@1245 f8528748-c2c0-11dd-ba5c-d3b7c2b3b534