Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=56045
Copy the XML schemas used for validation that are located in jsp-api.jar to servlet-api.jar so that an embedded Tomcat instance can start without Jasper being available. Also enable validation to work without Jasper being available.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1560931 13f79535-47bb-0310-9956-ffa450edef68
Update change log

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1560932 13f79535-47bb-0310-9956-ffa450edef68