* Changed UPnPNodeFinder class not to derive from ControlPoint class.
* Fixed the destructor into virtual.
* Fixed Error class to initialize the detail code.`
* Fixed methods in TabletSQLite class to check wheter the error parameter is null.
* Fixed TabletObject::getHashSeed() to use the prefix.`
* Added NodeFluctuationTestController::checkClientNodeGraphSize().
* Updated NodeFluctuationTestController class using real nodes.
* Added Fractal::Test::Sleep().