Bump server version to 1.1.3

Also updated readme and command descriptions

src/main/java/emu/nebula/command/commands/LevelCommand.java

@@ -0,0 +1,41 @@
+package emu.nebula.command.commands;
+
+import emu.nebula.command.Command;
+import emu.nebula.command.CommandArgs;
+import emu.nebula.command.CommandHandler;
+import emu.nebula.data.GameData;
+import emu.nebula.net.NetMsgId;
+import emu.nebula.proto.NotifyGm.GmWorldClass;
+import emu.nebula.util.Utils;
+
+@Command(label = "setlevel", aliases = {"level", "l"}, permission = "player.level", requireTarget = true, desc = "!level [level] = Set's the targeted player's level")
+public class LevelCommand implements CommandHandler {
+
+    @Override
+    public String execute(CommandArgs args) {
+        // Get target
+        var target = args.getTarget();
+        
+        // Parse level
+        int level = Utils.parseSafeInt(args.get(0));
+        
+        // Check to make sure world class data exists for this level
+        var data = GameData.getWorldClassDataTable().get(level);
+        if (data == null) {
+            return "The game does not support level " + level;
+        }
+        
+        target.setLevel(level);
+        target.setExp(0);
+        
+        // Update
+        target.addNextPackage(
+            NetMsgId.world_class_number_notify,
+            GmWorldClass.newInstance()
+                .setFinalClass(target.getLevel())
+                .setLastExp(target.getExp())
+        );
+        
+        return "Level set to " + level;
+    }
+}