Doesn't run with tomcat8 #161

- antiJarLocking is no longer supported in Tomcat 8. Because we have will move towards Spring Boot we will have a much better way to reload plugins so investigating the difference between Tomcat 7 and 8 is not the way to go.

webgoat-container/src/main/java/org/owasp/webgoat/plugins/PluginsLoader.java

@@ -55,7 +55,6 @@ public class PluginsLoader {
         try {
             if (!alreadyLoaded) {
                 WebappClassLoader cl = (WebappClassLoader) Thread.currentThread().getContextClassLoader();
-                cl.setAntiJARLocking(true);
                 List<URL> jars = listJars();
                 for (URL jar : jars) {
                     cl.addRepository(jar.toString());