Replaced undertow references with Jetty.

jetty-servlet/README.md

@@ -1,6 +1,6 @@
 # Jetty-9 Benchmarking Test
 
-This is the undertow portion of a [benchmarking test suite](../) comparing a variety of web development platforms.
+This is the Jetty portion of a [benchmarking test suite](../) comparing a variety of web development platforms.
 
 ### JSON Encoding Test
 * [JSON test source](src/main/java/hello/HelloWebServer.java)

jetty-servlet/benchmark_config

@@ -1,5 +1,5 @@
 {
-  "framework": "undertow",
+  "framework": "jetty-servlet",
   "tests": [{
     "default": {
       "setup_file": "setup",