updated struts tags declaration

git-svn-id: https://svn.apache.org/repos/asf/struts/sandbox/trunk@1550491 13f79535-47bb-0310-9956-ffa450edef68
added theme properties

git-svn-id: https://svn.apache.org/repos/asf/struts/sandbox/trunk@1550492 13f79535-47bb-0310-9956-ffa450edef68
added theme properties

git-svn-id: https://svn.apache.org/repos/asf/struts/sandbox/trunk@1550493 13f79535-47bb-0310-9956-ffa450edef68