SECURITY element moved and renamed security (all lower case)

In Web Server 6.1, the SECURITY element was under the JAVA element in server.xml. In Web Server 7.0, the JAVA element has been split into two elements: jvm and servlet-container. In Web Server 7.0, the security element is under the servlet-container element and is called security (all lower case) instead of SECURITY. The necessary changes are made in the new server_instance/config/server.xml.