Remove the -rs suffix of jid, minidom and xmpp

We know those are Rust libraries, no need to add it to the path.  This
synchronises their directory with the crate name, hopefully reducing
confusion.

xmpp-rs/examples/hello_bot.rs

@@ -1,95 +0,0 @@
-// Copyright (c) 2019 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this
-// file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-use env_logger;
-use std::env::args;
-use xmpp::{ClientBuilder, ClientFeature, ClientType, Event};
-use xmpp_parsers::{message::MessageType, Jid};
-
-#[tokio::main]
-async fn main() -> Result<(), Option<()>> {
-    env_logger::init();
-
-    let args: Vec<String> = args().collect();
-    if args.len() != 3 {
-        println!("Usage: {} <jid> <password>", args[0]);
-        return Err(None);
-    }
-    let jid = &args[1];
-    let password = &args[2];
-
-    // Client instance
-    let mut client = ClientBuilder::new(jid, password)
-        .set_client(ClientType::Bot, "xmpp-rs")
-        .set_website("https://gitlab.com/xmpp-rs/xmpp-rs")
-        .set_default_nick("bot")
-        .enable_feature(ClientFeature::Avatars)
-        .enable_feature(ClientFeature::ContactList)
-        .enable_feature(ClientFeature::JoinRooms)
-        .build()
-        .unwrap();
-
-    while let Some(events) = client.wait_for_events().await {
-        for event in events {
-            match event {
-                Event::Online => {
-                    println!("Online.");
-                }
-                Event::Disconnected => {
-                    println!("Disconnected");
-                    return Err(None);
-                }
-                Event::ContactAdded(contact) => {
-                    println!("Contact {} added.", contact.jid);
-                }
-                Event::ContactRemoved(contact) => {
-                    println!("Contact {} removed.", contact.jid);
-                }
-                Event::ContactChanged(contact) => {
-                    println!("Contact {} changed.", contact.jid);
-                }
-                Event::ChatMessage(jid, body) => {
-                    println!("Message from {}: {}", jid, body.0);
-                }
-                Event::JoinRoom(jid, conference) => {
-                    println!("Joining room {} ({:?})…", jid, conference.name);
-                    client
-                        .join_room(
-                            jid,
-                            conference.nick,
-                            conference.password,
-                            "en",
-                            "Yet another bot!",
-                        )
-                        .await;
-                }
-                Event::LeaveRoom(jid) => {
-                    println!("Leaving room {}…", jid);
-                }
-                Event::LeaveAllRooms => {
-                    println!("Leaving all rooms…");
-                }
-                Event::RoomJoined(jid) => {
-                    println!("Joined room {}.", jid);
-                    client
-                        .send_message(Jid::Bare(jid), MessageType::Groupchat, "en", "Hello world!")
-                        .await;
-                }
-                Event::RoomLeft(jid) => {
-                    println!("Left room {}.", jid);
-                }
-                Event::RoomMessage(jid, nick, body) => {
-                    println!("Message in room {} from {}: {}", jid, nick, body.0);
-                }
-                Event::AvatarRetrieved(jid, path) => {
-                    println!("Received avatar for {} in {}.", jid, path);
-                }
-            }
-        }
-    }
-
-    Ok(())
-}