Update log settings for spring-websocket tests

Author: rstoyanchev

src/test/resources/log4j.properties

@@ -7,5 +7,7 @@ log4j.logger.org.springframework.beans=WARN
 log4j.logger.org.springframework.binding=DEBUG
 log4j.logger.org.springframework.beans.factory.xml.XmlBeanFactory=ERROR
 
+log4j.logger.org.springframework.web.socket.handler.LoggingWebSocketHandlerDecorator=TRACE
+
 #log4j.logger.org.springframework=TRACE