Add "/setmaxplayers" command.

Essentials/src/main/java/com/earth2me/essentials/commands/Commandsetmaxplayers.java

@@ -0,0 +1,40 @@
+package com.earth2me.essentials.commands;
+
+import com.earth2me.essentials.CommandSource;
+import org.bukkit.Server;
+
+import java.util.List;
+
+public class Commandsetmaxplayers extends EssentialsCommand {
+    public Commandsetmaxplayers() {
+        super("setmaxplayers");
+    }
+
+    @Override
+    public void run(final Server server, final CommandSource sender, final String commandLabel, final String[] args) throws Exception {
+        if (args.length == 0) {
+            throw new NotEnoughArgumentsException();
+        }
+
+        try {
+            final int maxPlayers = Integer.parseInt(args[0]);
+            if (maxPlayers < 0) {
+                throw new Exception("The player limit cannot be set below 0.");
+            }
+
+            server.setMaxPlayers(maxPlayers);
+            sender.sendMessage("Player limit updated to " + maxPlayers + ".");
+        } catch (NumberFormatException e) {
+            throw new Exception("Invalid number.");
+        }
+    }
+
+    @Override
+    protected List<String> getTabCompleteOptions(final Server server, final CommandSource sender, final String commandLabel, final String[] args) {
+        if (args.length == 1) {
+            return getPlayers(sender);
+        } else {
+            return COMMON_DATE_DIFFS;
+        }
+    }
+}

Essentials/src/main/resources/messages.properties

@@ -1162,6 +1162,10 @@ setjailCommandDescription=Creates a jail where you specified named [jailname].
 setjailCommandUsage=/<command> <jailname>
 setjailCommandUsage1=/<command> <jailname>
 setjailCommandUsage1Description=Sets the jail with the specified name to your location
+setmaxplayersCommandDescription=Set the max player limit
+setmaxplayersCommandUsage=/<command> <number>
+setmaxplayersCommandUsage1=/<command> <number>
+setmaxplayersCommandUsage1Description=Sets the max player limit to the specified number
 settprCommandDescription=Set the random teleport location and parameters.
 settprCommandUsage=/<command> <world> [center|minrange|maxrange] [value]
 settprCommandUsage1=/<command> <world> center

Essentials/src/main/resources/plugin.yml

@@ -431,6 +431,10 @@ commands:
     description: Creates a jail where you specified named [jailname].
     usage: /<command> <jailname>
     aliases: [esetjail,createjail,ecreatejail]
+  setmaxplayers:
+    description: Set the max player limit
+    usage: /<command> <number>
+    aliases: [esetmaxplayers]
   settpr:
     description: Set the random teleport location and parameters.
     usage: /<command> [center|minrange|maxrange] [value]
@@ -1209,6 +1213,8 @@ permissions:
     description: Allows access to delete other players homes with the /delhome command
   essentials.setjail:
     description: Allows access to the /setjail command
+  essentials.setmaxplayers:
+    description: Allows access to the /setmaxplayers command
   essentials.setwarp:
     description: Allows access to the /setwarp command
   essentials.setworth: