Add Referee's Tools

Update JS, add versioning (for cache-busting updates)
Clean up a bunch of unused files
Add Rivertail community
Add some new races

.eslintrc.cjs

@@ -0,0 +1,29 @@
+module.exports = {
+    "env": {
+        "browser": true,
+        "es2021": true
+    },
+    "extends": [
+        "eslint:recommended",
+        "prettier" // Make sure this is the last
+    ],
+    "overrides": [
+        {
+            "env": {
+                "node": true
+            },
+            "files": [
+                ".eslintrc.{js,cjs}"
+            ],
+            "parserOptions": {
+                "sourceType": "script"
+            }
+        }
+    ],
+    "parserOptions": {
+        "ecmaVersion": "latest",
+        "sourceType": "module"
+    },
+    "rules": {
+    }
+}