Fix graphql framework entries in benchmark_config (#4219)

* initial commit of javalin framework with two tests - json and plaintext

* removed unncecessary gradle files and adjusted the dockerfile and build.gradle to add a gradle build step prior to running

* removed commented-out line from dockerfile

* aded javalin to travis.yml file

* initial commit of Golang Iris framework with 5 tests

* fixed readme to add some clarifying terms

* [ci skip] removed gitignore and license

* [ci skip] removed unecessary code from benchmark_config

* placed graphql-express implementations under the express framework

frameworks/JavaScript/express/benchmark_config.json

@@ -96,7 +96,7 @@
       "port": 8080,
       "approach": "Realistic",
       "classification": "Micro",
-      "framework": "graphql-express-mysql",
+      "framework": "express",
       "language": "JavaScript",
       "flavor": "NodeJS",
       "orm": "Full",
@@ -117,7 +117,7 @@
       "port": 8080,
       "approach": "Realistic",
       "classification": "Micro",
-      "framework": "graphql-express-mysql",
+      "framework": "express",
       "language": "JavaScript",
       "flavor": "NodeJS",
       "orm": "Full",
@@ -138,7 +138,7 @@
       "port": 8080,
       "approach": "Realistic",
       "classification": "Micro",
-      "framework": "graphql-express-mongodb",
+      "framework": "express",
       "language": "JavaScript",
       "flavor": "NodeJS",
       "orm": "Full",