Added required jars for running tests

Author: jimkyndemeyer

DEVELOPING.md

@@ -2,9 +2,11 @@
 
 ## Setting up the Plugin SDK
 - Add all jars in `<intellij home>/plugins/JavaScriptLanguage`
-- Add the NodeNS.jar in `<user home>/.IntelliJIdea15/config/plugins/NodeJS/lib`
-- Add the IntelliLang.jar in `<user home>/.IntelliJIdea15/config/plugins/IntelliLang/lib`
-- Add the netty-all-*.jar in `<intellij home>/lib` 
+- Add all jars in `<intellij home>/plugins/JavaScriptDebugger/lib`
+- Add the css.jar in `<intellij home>/plugins/CSS/lib`
+- Add the netty-all-*.jar in `<intellij home>/lib`
+- Add the NodeNS.jar in `<user home>/.IntelliJIdea<version>/config/plugins/NodeJS/lib`
+- Add the IntelliLang.jar in `<user home>/.IntelliJIdea<version>/config/plugins/IntelliLang/lib`
 
 ## Setting up Intellij Community (OpenApi) sources:
 - https://github.com/JetBrains/intellij-plugins/tree/master/Dart
@@ -30,4 +32,4 @@ This run-configuration setup enabled debugging of the language service source co
 -Djsgraphql.debug.languageServiceUrl=http://localhost:3000/js-graphql-language-service
 ```
 
-Note that no process handler console view is available since the plugin isn't responsible for running the Node.js process.
+Note that no process handler console view is available since the plugin isn't responsible for running the Node.js process.