Added addSwitchActuatorState to SetActuatorStatesRequest.php
Fixed xml-namespace being removed by SimpleXML by adding a "xmns" ('xsi:type' was changed to 'type' in SetActuatorStatesRequest.php)
Merge pull request #1 from Jopi24/master

Added addSwitchActuatorState method to SetActuatorStatesRequest class and fixed a bug with namespaces