Fix relative /tp always moving you up a block or two

fCraft/Commands/ModerationCommands.cs

@@ -1466,9 +1466,9 @@ static void UnfreezeHandler(Player player, CommandReader cmd)
             rot = player.Position.R;
             lot = player.Position.L;
 
-            if (cmd.NextCoord(player.Position.ToBlockCoords().X, out x)
-                && cmd.NextCoord(player.Position.ToBlockCoords().Y, out y)
-                && cmd.NextCoord(player.Position.ToBlockCoords().Z, out z)) {
+            if (cmd.NextCoord(player.Position.BlockX, out x)
+                && cmd.NextCoord(player.Position.BlockY, out y)
+                && cmd.NextCoord(player.Position.BlockFeetZ, out z)) {
 
                 if (cmd.CountRemaining >= 2) {
                     if (cmd.NextInt(out rot) && cmd.NextInt(out lot)) {

fCraft/Commands/ZoneCommands.cs

@@ -867,7 +867,7 @@ static void SignRemoveHandler(Player player, CommandReader cmd)
                 return;
             }
 
-            if (!SpecialZone.CanManage(oldZone.Name.ToLower(), player, "rename a")) return;
+            if (!SpecialZone.CanManage(oldZone.Name, player, "rename a")) return;
             if (!SpecialZone.CanManage(newName, player, "rename to a")) return;
 
             // Check if a zone with "newName" name already exists

fCraft/Player/Position.cs

@@ -137,6 +137,7 @@ public override string ToString()
         public int BlockX { get { return X >> 5; } }
         public int BlockY { get { return Y >> 5; } }
         public int BlockZ { get { return Z >> 5; } }
+        public int BlockFeetZ { get { return (Z - Player.CharacterHeight) >> 5; } }
 
 
         public Vector3I ToBlockCoords() {