Add user cache, no more "guard refs".

src/routes/root.rs

@@ -6,7 +6,7 @@ use mongodb::bson::doc;
 #[get("/")]
 pub fn root() -> Response {
     Response::Success(json!({
-        "revolt": "0.2.5"
+        "revolt": "0.2.6"
     }))
 }