Added force check update command

Closes #54

TShockAPI/Commands.cs

@@ -113,6 +113,7 @@ namespace TShockAPI
             commands.Add(new Command("me", "", ThirdPerson));
             commands.Add(new Command("p", "", PartyChat));
             commands.Add(new Command("butcher", "cheat", Butcher));
+            commands.Add(new Command("checkupdates", "maintenance", CheckUpdates));
             if (ConfigurationManager.distributationAgent != "terraria-online")
             {
                 commands.Add(new Command("kill", "kill", Kill));
@@ -124,6 +125,11 @@ namespace TShockAPI
 
         #region Command Methods
 
+        public static void CheckUpdates(CommandArgs args)
+        {
+            UpdateManager.CheckUpdate();
+        }
+
         public static void PartyChat(CommandArgs args)
         {
             int playerTeam = Main.player[args.PlayerID].team;

TShockAPI/UpdateManager.cs

@@ -68,13 +68,17 @@ namespace TShockAPI
             long currentEpoch = (DateTime.Now.ToUniversalTime().Ticks - 621355968000000000) / 10000000;
             if (currentEpoch > UpdateManager.updateEpoch)
             {
-                if (ServerIsOutOfDate())
-                {
-                    EnableUpdateCommand();
-                    NotifyAdministrators(globalChanges);
-                }
+                CheckUpdate();
             }
         }
 
+        public static void CheckUpdate()
+        {
+            if (ServerIsOutOfDate())
+            {
+                EnableUpdateCommand();
+                NotifyAdministrators(globalChanges);
+            }
+        }
     }
 }