applied PR #362 to gretty-runner-jetty94

Author: Andrey Hihlovskiy

libs/gretty-runner-jetty94/src/main/groovy/org/akhikhl/gretty/JettyConfigurerImpl.groovy

@@ -207,6 +207,8 @@ class JettyConfigurerImpl implements JettyConfigurer {
     context.setWebInfLib(webappClassPath.findAll { it.endsWith('.jar') && !isServletApi(it) }.collect { new File(it) })
     context.setExtraClasspath(webappClassPath.collect { it.endsWith('.jar') ? it : (it.endsWith('/') ? it : it + '/') }.findAll { !isServletApi(it) }.join(';'))
     context.setInitParameter('org.eclipse.jetty.servlet.Default.useFileMappedBuffer', serverParams.productMode ? 'true' : 'false')
+    context.setAttribute('org.eclipse.jetty.server.webapp.ContainerIncludeJarPattern',
+        '.*/[^/]*servlet-api-[^/]*\\.jar$|.*/javax.servlet.jsp.jstl-.*\\.jar$|.*/[^/]*taglibs.*\\.jar$');
     FilteringClassLoader classLoader = new FilteringClassLoader(context)
     classLoader.addServerClass('ch.qos.logback.')
     classLoader.addServerClass('org.slf4j.')