fix gradle dependencies

README.md

@@ -0,0 +1,24 @@
+environment
+-----------
+
+  ```shell
+  docker network create scrow 2>/dev/null || true
+  docker run -d --network scrow -it --rm --name mongo -p 27017:27017 mongo
+  docker run -d --network scrow -e ME_CONFIG_MONGODB_SERVER=mongo -e ME_CONFIG_MONGODB_AUTH_PASSWORD='' -e ME_CONFIG_MONGODB_AUTH_USERNAME='' --name mongo-express -p 8081:8081 mongo-express
+  ```
+
+modules
+-------
+
+* APIs
+  ----
+
+* core-api contains api for all java development
+* core-bukkit-api contains api for bukkit development
+  * depends on core-api
+
+* implementations
+  ---------------
+  the `-impl` suffix indicates that this module implements the API with the same prefix.
+  So `core-impl` implements `core-api`.
+  * core-bukkit-impl is a spigot plugin. It shades core-impl.