Route which lets clients determine messages that have updated / deleted.

src/routes/channels/mod.rs

@@ -9,6 +9,7 @@ mod message_delete;
 mod message_edit;
 mod message_fetch;
 mod message_query;
+mod message_query_stale;
 mod message_send;
 
 pub fn routes() -> Vec<Route> {
@@ -17,6 +18,7 @@ pub fn routes() -> Vec<Route> {
         delete_channel::req,
         message_send::req,
         message_query::req,
+        message_query_stale::req,
         message_fetch::req,
         message_edit::req,
         message_delete::req,