Moved all vanilla commands into Bukkit

src/main/java/org/bukkit/command/defaults/DeopCommand.java

@@ -0,0 +1,42 @@
+package org.bukkit.command.defaults;
+
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+public class DeopCommand extends VanillaCommand {
+    public DeopCommand() {
+        super("deop");
+        this.description = "Takes the specified player's operator status";
+        this.usageMessage = "/deop <player>";
+        this.setPermission("bukkit.command.op.take");
+    }
+
+    @Override
+    public boolean execute(CommandSender sender, String currentAlias, String[] args) {
+        if (!testPermission(sender)) return true;
+        if (args.length != 1)  {
+            sender.sendMessage(ChatColor.RED + "Usage: " + usageMessage);
+            return false;
+        }
+
+        Command.broadcastCommandMessage(sender, "De-opping " + args[0]);
+
+        OfflinePlayer player = Bukkit.getOfflinePlayer(args[0]);
+        player.setOp(false);
+
+        if (player instanceof Player) {
+            ((Player)player).sendMessage(ChatColor.YELLOW + "You are no longer op!");
+        }
+
+        return true;
+    }
+
+    @Override
+    public boolean matches(String input) {
+        return input.startsWith("deop ");
+    }
+}