PR951 Added plaintext url to benchmark_config

sinatra/benchmark_config

@@ -6,6 +6,7 @@
       "json_url": "/json",
       "db_url": "/db",
       "query_url": "/db?queries=",
+      "plaintext_url": "/plaintext",
       "port": 8080,
       "approach": "Realistic",
       "classification": "Micro",
@@ -26,6 +27,7 @@
       "json_url": "/sinatra/json",
       "db_url": "/sinatra/db",
       "query_url": "/sinatra/db?queries=",
+      "plaintext_url": "/sinatra/plaintext",
       "port": 8080,
       "approach": "Realistic",
       "classification": "Micro",
@@ -42,4 +44,4 @@
       "versus": "rack-jruby"
     }
   }]
-}
+}