More work on tab completion, see details.. #77

Completed:
- Jail check
- jail clear
- jail createcell
- jail deletecell
- Jail list
- jail listcells
- jail mute

src/main/java/com/graywolf336/jail/command/subcommands/JailMuteCommand.java

@@ -1,6 +1,12 @@
 package com.graywolf336.jail.command.subcommands;
 
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
 import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.bukkit.util.StringUtil;
 
 import com.graywolf336.jail.JailManager;
 import com.graywolf336.jail.command.Command;
@@ -35,4 +41,19 @@ public class JailMuteCommand implements Command {
 
         return true;
     }
+
+    public List<String> provideTabCompletions(JailManager jm, CommandSender sender, String... args) throws Exception {
+        switch(args.length) {
+            case 2:
+                List<String> results = new ArrayList<String>();
+                for(Player p : jm.getPlugin().getServer().getOnlinePlayers())
+                    if(StringUtil.startsWithIgnoreCase(p.getName(), args[1].toLowerCase()))
+                        results.add(p.getName());
+                
+                Collections.sort(results);
+                return results;
+            default:
+                return Collections.emptyList();
+        }
+    }
 }