WsdlClass__construct method allows to reset or not the SoapClient if its not needed.
New methods are generated within the Services classes in order to set the SoapHeaders after instancitating the service class. For each required SoapHeader, a method is available and makes easy to set the SoapHeader.
Improvement in WsdlToPhpModel::getValueWithinItsType() in order to allow to indicate in wich type the value should be returned
Update Structs __construct() method when WsdlClass is not generated in order to call its setters
