Add chest location when throw an exception.

[tanpro260196]

I don't know why but when I use the mass-refill command, this exception always show up after a while:
[Protector] A timer's callback has thrown an exception. Excpetion details: Terraria.Plugins.Common.InvalidChestStyleException: Chest has to be a lockable chest. at Terraria.Plugins.Common.TerrariaTiles.LockChest(Point anyChestTileLocation) at Terraria.Plugins.CoderCow.Protector.ChestManager.TryRefillChest(IChest chest, RefillChestMetadata refillChestData) at Terraria.Plugins.CoderCow.Protector.ChestManager.TryRefillChest(Point chestLocation, RefillChestMetadata refillChestData) at Terraria.Plugins.CoderCow.Protector.ChestManager.RefillChestTimer_Callback(TimerBase timer) at Terraria.Plugins.Common.TimerManager.InvokeTimerCallback(TimerBase timer)

All I do is set refill and auto-lock on Dungeon and Hell chest, so it's not suppose to thrown this exception.
More importantly, can you add the location of the error chest in the exception message? Really help a lot in tracking down the broken chest.

[CoderCow]

Looks like a bug preventing chests from being locked again when someone took items out and their refill timer expired.